Algebra Examples

$(4 x^{2} - 3 x + 9) + (7 x^{2} - 11) + (- x^{2} + 7 x - 2)$

Step 1

Remove parentheses.

$4 x^{2} - 3 x + 9 + 7 x^{2} - 11 - x^{2} + 7 x - 2$

Step 2

Add $4 x^{2}$ and $7 x^{2}$ .

$11 x^{2} - 3 x + 9 - 11 - x^{2} + 7 x - 2$

Step 3

Subtract $x^{2}$ from $11 x^{2}$ .

$10 x^{2} - 3 x + 9 - 11 + 7 x - 2$

Step 4

Add $- 3 x$ and $7 x$ .

$10 x^{2} + 4 x + 9 - 11 - 2$

Step 5

Simplify by subtracting numbers.

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Step 5.1

Subtract $11$ from $9$ .

$10 x^{2} + 4 x - 2 - 2$

Step 5.2

Subtract $2$ from $- 2$ .

$10 x^{2} + 4 x - 4$