Algebra Examples

$4 r + 3 - 9 r^{2} + 7 r$

Step 1

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$a x^{2} + b x + c$

Step 2

Add $4 r$ and $7 r$ .

$11 r + 3 - 9 r^{2}$

Step 3

Simplify the expression.

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Step 3.1

Move $3$ .

$11 r - 9 r^{2} + 3$

Step 3.2

Reorder $11 r$ and $- 9 r^{2}$ .

$- 9 r^{2} + 11 r + 3$