Precalculus Examples

$3 (- 10 x + 15) + 5$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

$3 (- 10 x) + 3 \cdot 15 + 5$

Step 1.2

Multiply $- 10$ by $3$ .

$- 30 x + 3 \cdot 15 + 5$

Step 1.3

Multiply $3$ by $15$ .

$- 30 x + 45 + 5$

$- 30 x + 45 + 5$

Step 2

Add $45$ and $5$ .

$- 30 x + 50$

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