Pre-Algebra Examples

$3 x^{2} - 5 x + 12$ $5 x^{2} + x - 11$

Step 1

Add the expressions.

$3 x^{2} - 5 x + 12 + 5 x^{2} + x - 11$

Step 2

Add $3 x^{2}$ and $5 x^{2}$ .

$8 x^{2} - 5 x + 12 + x - 11$

Step 3

Add $- 5 x$ and $x$ .

$8 x^{2} - 4 x + 12 - 11$

Step 4

Subtract $11$ from $12$ .

$8 x^{2} - 4 x + 1$

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