Finite Math Examples

$20 x^{2} - 7 x + 15 + (8 x^{2} - 8 x + 16)$

Step 1

Remove parentheses.

$20 x^{2} - 7 x + 15 + 8 x^{2} - 8 x + 16$

Step 2

Add $20 x^{2}$ and $8 x^{2}$ .

$28 x^{2} - 7 x + 15 - 8 x + 16$

Step 3

Subtract $8 x$ from $- 7 x$ .

$28 x^{2} - 15 x + 15 + 16$

Step 4

Add $15$ and $16$ .

$28 x^{2} - 15 x + 31$

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