Precalculus Examples

$3 x^{2} + x + 1 + (2 x^{2} - 3 x - 5)$

Step 1

Remove parentheses.

$3 x^{2} + x + 1 + 2 x^{2} - 3 x - 5$

Step 2

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

$5 x^{2} + x + 1 - 3 x - 5$

Step 3

Subtract $3 x$ from $x$ .

$5 x^{2} - 2 x + 1 - 5$

Step 4

Subtract $5$ from $1$ .

$5 x^{2} - 2 x - 4$

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