Finite Math Examples

$5 x^{2} - 7 x + 12 + (4 x^{2} + 9 x - 85)$

Step 1

Remove parentheses.

$5 x^{2} - 7 x + 12 + 4 x^{2} + 9 x - 85$

Step 2

Add $5 x^{2}$ and $4 x^{2}$ .

$9 x^{2} - 7 x + 12 + 9 x - 85$

Step 3

Add $- 7 x$ and $9 x$ .

$9 x^{2} + 2 x + 12 - 85$

Step 4

Subtract $85$ from $12$ .

$9 x^{2} + 2 x - 73$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$