Question

which expression is equivalent to 7(1 - 10x + 2)? the options are: -7 - 70x, 21 - 70x, 70x - 7, 10x + 21

Explanation:

Step1: Simplify terms inside parentheses

$1 + 2 = 3$, so the expression becomes $7(3 - 10x)$

Step2: Apply distributive property

$7\times3 - 7\times10x$

Step3: Calculate each product

$21 - 70x$

Answer:

21 − 70x