Mathway | Problemi più comuni

Problemi più comuni

Livello	Argomento	Problema	Problema formattato
18501	求解x	2+6/(x^2)=0	$2 + \frac{6}{x^{2}} = 0$
18502	求解x	3x^2+24x+55=7	$3 x^{2} + 24 x + 55 = 7$
18503	求解x	-3x^2+12x=0	$- 3 x^{2} + 12 x = 0$
18504	求解x	3x^2-16x+19=0	$3 x^{2} - 16 x + 19 = 0$
18505	求解x	3x^2+9=0	$3 x^{2} + 9 = 0$
18506	求解x	2cos(x)=0	$2 \cos (x) = 0$
18507	求解X	3X^2-2X-1=0	$3 X^{2} - 2 X - 1 = 0$
18508	Trovare le intercette con l'asse X e Y	f(x)=4x^3-9x^4	$f (x) = 4 x^{3} - 9 x^{4}$
18509	求解x	2x^(4+7x^2)-4=0	$2 x^{4 + 7 x^{2}} - 4 = 0$
18510	求dx/dt	x=(1+t) radice quadrata di t	$x = (1 + t) \sqrt{t}$
18511	求解x	1900-4x=0	$1900 - 4 x = 0$
18512	求解x	2x+4y=1	$2 x + 4 y = 1$
18513	求解x	2x=x^2	$2 x = x^{2}$
18514	求解x	2xy-y^2=0	$2 x y - y^{2} = 0$
18515	求解x	2xy-y^2=1	$2 x y - y^{2} = 1$
18516	求解x	367.8=1000e^(-x/y)	$367.8 = 1000 e^{- \frac{x}{y}}$
18517	求解x	3cos(3x)=0	$3 \cos (3 x) = 0$
18518	求解x	4x^2-21x-18=0	$4 x^{2} - 21 x - 18 = 0$
18519	求解x	-6x^2+12x-24=0	$- 6 x^{2} + 12 x - 24 = 0$
18520	求解x	6x-6=0	$6 x - 6 = 0$
18521	求解X	5X^2y+7Xy^2=9	$5 X^{2} y + 7 X y^{2} = 9$
18522	求解x	7x^2-12x+16=0	$7 x^{2} - 12 x + 16 = 0$
18523	求解x	7-2800x^-2=0	$7 - 2800 x^{- 2} = 0$
18524	求解x	8(4^(5-x))=40	$8 (4^{5 - x}) = 40$
18525	求解x	6x^2-48x+54=0	$6 x^{2} - 48 x + 54 = 0$
18526	求解x	4-108/(x^3)=0	$4 - \frac{108}{x^{3}} = 0$
18527	求解x	3x^5-9x^4-28x^3+84x^2+9x-27=0	$3 x^{5} - 9 x^{4} - 28 x^{3} + 84 x^{2} + 9 x - 27 = 0$
18528	求解x	3x^2-8x-7=0	$3 x^{2} - 8 x - 7 = 0$
18529	求解x	3x^2-9=0	$3 x^{2} - 9 = 0$
18530	求解x	3cos(x)=cos(x)+1	$3 \cos (x) = \cos (x) + 1$
18531	求dp/dq	pi=(cos(q)-sin(q))/(cos(q))	$π = \frac{\cos (q) - \sin (q)}{\cos (q)}$
18532	求解x	4cos(x)-4sin(x)=0	$4 \cos (x) - 4 \sin (x) = 0$
18533	求解x	5(4^(x-5))=36	$5 (4^{x - 5}) = 36$
18534	求解y	0.5x+4.8y=-22.3	$0.5 x + 4.8 y = - 22.3$
18535	求解y	x^3-x^2-xy=4	$x^{3} - x^{2} - x y = 4$
18536	求解y	2x^2y-2x^2-4xy+4x=0	$2 x^{2} y - 2 x^{2} - 4 x y + 4 x = 0$
18537	求解y	2x+5y=9	$2 x + 5 y = 9$
18538	求解y	-2x+7y+6=0	$- 2 x + 7 y + 6 = 0$
18539	求解y	3y^3+(1)y-y=375(1)^4	$3 y^{3} + (1) y - y = 375 {(1)}^{4}$
18540	求解y	4x^2-y^2=5	$4 x^{2} - y^{2} = 5$
18541	求解y	4x-2y^2=e^y	$4 x - 2 y^{2} = e^{y}$
18542	求解y	5y-7xy=5x^2+10	$5 y - 7 x y = 5 x^{2} + 10$
18543	求解y	7y+12x-2=0	$7 y + 12 x - 2 = 0$
18544	求解y	y+1=-1/5*(x-1)	$y + 1 = - \frac{1}{5} \cdot (x - 1)$
18545	求解y	y=1/(1+e^(1/x))	$y = \frac{1}{1 + e^{\frac{1}{x}}}$
18546	求解y	46=x+y	$46 = x + y$
18547	使用乘积法则求导—d/d@VAR	f(z)=(4z^4+2z^2+1)(2z^3-z)	$f (z) = (4 z^{4} + 2 z^{2} + 1) (2 z^{3} - z)$
18548	求解y	y=1/(x-2)	$y = \frac{1}{x - 2}$
18549	求解y	y=e^0	$y = e^{0}$
18550	求解y	y=x^2+16x+60	$y = x^{2} + 16 x + 60$
18551	求导数 - d/dx	7x^(3/2)	$7 x^{\frac{3}{2}}$
18552	求解z	x=arctan(5/12)	$x = \arctan (\frac{5}{12})$
18553	求解y	y=-5x^4+33x^2-10x-30	$y = - 5 x^{4} + 33 x^{2} - 10 x - 30$
18554	求解y	y=(1+x^2)/(1-x^2)	$y = \frac{1 + x^{2}}{1 - x^{2}}$
18555	Semplificare	(a^2-ax)(x^4-82x^2+81)	$(a^{2} - a x) (x^{4} - 82 x^{2} + 81)$
18556	Semplificare	((b^2+z^2)/(b^2-z^2))(-(4b^2z)/((b^2+z^2)^2))	$(\frac{b^{2} + z^{2}}{b^{2} - z^{2}}) (- \frac{4 b^{2} z}{{(b^{2} + z^{2})}^{2}})$
18557	Semplificare	(-1/2Q+45)(90-2p)	$(- \frac{1}{2} Q + 45) (90 - 2 p)$
18558	求解y	z=x(1-y)+y(1-x)	$z = x (1 - y) + y (1 - x)$
18559	Semplificare	(1/( radice quadrata di t+h))-(1/( radice quadrata di t))	$(\frac{1}{\sqrt{t + h}}) - (\frac{1}{\sqrt{t}})$
18560	Semplificare	(1/2x^(-1/2))(1/2x^(-1/2))	$(\frac{1}{2} x^{- \frac{1}{2}}) (\frac{1}{2} x^{- \frac{1}{2}})$
18561	Semplificare	(1/2x^(-1/2))(x^(1/2)+2)-(x^(1/2)+1)(1/2x^(-1/2))	$(\frac{1}{2} x^{- \frac{1}{2}}) (x^{\frac{1}{2}} + 2) - (x^{\frac{1}{2}} + 1) (\frac{1}{2} x^{- \frac{1}{2}})$
18562	Semplificare	(72/x+2)(x+4)	$(\frac{72}{x} + 2) (x + 4)$
18563	Semplificare	(e^x)(e^x)	$(e^{x}) (e^{x})$
18564	Semplificare	(x^2+x-6)(2x)	$(x^{2} + x - 6) (2 x)$
18565	Semplificare	(-x^2-3x-3)-(4x+9)	$(- x^{2} - 3 x - 3) - (4 x + 9)$
18566	Semplificare	(x^3+1)(3x^2-4x+2)	$(x^{3} + 1) (3 x^{2} - 4 x + 2)$
18567	Semplificare	x^2-3	$x^{2} - 3$
18568	Semplificare	(x^2+4)-(2x-2)	$(x^{2} + 4) - (2 x - 2)$
18569	Semplificare	(t^(1/7))(1-1/2t^(-1/2))	$(t^{\frac{1}{7}}) (1 - \frac{1}{2} t^{- \frac{1}{2}})$
18570	Semplificare	( radice quadrata di 245x^5y^7)*( radice quadrata di 10xy^6)	$(\sqrt{245 x^{5} y^{7}}) \cdot (\sqrt{10 x y^{6}})$
18571	Semplificare	(v^3-2v)(v^-4+v^-2)	$(v^{3} - 2 v) (v^{- 4} + v^{- 2})$
18572	Semplificare	(x^(1/6)+1)(1/6x^(-1/6))-(x^(1/6)-1)(1/6x^(-1/6))	$(x^{\frac{1}{6}} + 1) (\frac{1}{6} x^{- \frac{1}{6}}) - (x^{\frac{1}{6}} - 1) (\frac{1}{6} x^{- \frac{1}{6}})$
18573	Semplificare	(-1/2x^2+800x)-(4200+600x)	$(- \frac{1}{2} x^{2} + 800 x) - (4200 + 600 x)$
18574	Semplificare	-(7/(x-2))+(1-3x)/x	$- (\frac{7}{x - 2}) + \frac{1 - 3 x}{x}$
18575	Semplificare	(x^2)(cos(x))	$(x^{2}) (\cos (x))$
18576	Semplificare	(x^2-a^2)(x^2+a^2)	$(x^{2} - a^{2}) (x^{2} + a^{2})$
18577	Semplificare	(35-2x)(19-2x)	$(35 - 2 x) (19 - 2 x)$
18578	Semplificare	(320+20x)(4-0.1x)	$(320 + 20 x) (4 - 0.1 x)$
18579	Semplificare	(3x-1)(x+3)	$(3 x - 1) (x + 3)$
18580	Semplificare	(-4x^2-4x-7)-(-3x^2+8x-2)+2x^2+7-2	$(- 4 x^{2} - 4 x - 7) - (- 3 x^{2} + 8 x - 2) + 2 x^{2} + 7 - 2$
18581	Semplificare	(40000+10000/3x)(27-x)+(40000+10000/3x)(3)	$(40000 + \frac{10000}{3} x) (27 - x) + (40000 + \frac{10000}{3} x) (3)$
18582	Semplificare	(40000+10000/5x)(30-x)+(40000+10000/5x)(5.00)	$(40000 + \frac{10000}{5} x) (30 - x) + (40000 + \frac{10000}{5} x) (5)$
18583	Semplificare	(45+75i)*(15+25i)	$(45 + 75 i) \cdot (15 + 25 i)$
18584	Semplificare	(40000+1000/3x)(27-x)+(40000+10000/3x)(3.00)	$(40000 + \frac{1000}{3} x) (27 - x) + (40000 + \frac{10000}{3} x) (3)$
18585	Semplificare	4b-2a+(-2b+c)	$4 b - 2 a + (- 2 b + c)$
18586	Semplificare	(4pi-4x)(2+2cos(x-pi))	$(4 π - 4 x) (2 + 2 \cos (x - π))$
18587	Semplificare	(4x)(10x-3)+(5x^2-3x)(4)	$(4 x) (10 x - 3) + (5 x^{2} - 3 x) (4)$
18588	Semplificare	(4z-5)(3z-2)-(3z-9)(3z-2)	$(4 z - 5) (3 z - 2) - (3 z - 9) (3 z - 2)$
18589	Semplificare	-(600+2x+0.0000x^2)	$- (600 + 2 x + 0 x^{2})$
18590	Semplificare	(640+20x)(8-0.1x)	$(640 + 20 x) (8 - 0.1 x)$
18591	Semplificare	(6x-23)(2x-23)	$(6 x - 23) (2 x - 23)$
18592	Semplificare	(700x-5x^2)-(300x+1600)	$(700 x - 5 x^{2}) - (300 x + 1600)$
18593	Semplificare	8w^2-3w+9+(9w^2-3w+9)-(-w^2+9w+4)	$8 w^{2} - 3 w + 9 + (9 w^{2} - 3 w + 9) - (- w^{2} + 9 w + 4)$
18594	Semplificare	(960+20x)(6-0.1x)	$(960 + 20 x) (6 - 0.1 x)$
18595	Semplificare	(n+2)(n+1)	$(n + 2) (n + 1)$
18596	Semplificare	(1-3x)(cos(x))	$(1 - 3 x) (\cos (x))$
18597	Semplificare	(-0.1x+40)-(0.0003x^2-0.12x+20)	$(- 0.1 x + 40) - (0.0003 x^{2} - 0.12 x + 20)$
18598	Semplificare	(1-x/4)(1+x/4)	$(1 - \frac{x}{4}) (1 + \frac{x}{4})$
18599	Semplificare	(2h^2+4hx+2x^2-9h-9x)-(2x^2-9x)	$(2 h^{2} + 4 h x + 2 x^{2} - 9 h - 9 x) - (2 x^{2} - 9 x)$
18600	Semplificare	(2w^4+3w^3-10w^2-3w+6)÷(w^2-2)	$(2 w^{4} + 3 w^{3} - 10 w^{2} - 3 w + 6) \div (w^{2} - 2)$