Question

use the distributive property to write an expression that is equivalent to each given expression. 1. -3(2x-4) 2. 0.1(-90+50a) 3. -7(+50a) 4. 4/5(10y+-x+-15)

Answer 1

We need to apply distributive property on each of the given expressions to write their equivalent expressions.

(1)  $-3(2x-4)$

Upon using distributive property, we get:

$(-3)(2x)+(-3)(-4)\\ -6x+12$

(2) $0.1(-90+50a)$

Upon using distributive property, we get:

$-9+5a$

(3) $-7(+50a)$

This part is incomplete.

(4) $\frac{4}{5}(10y+-x+-15)$

Upon using distributive property, we get:

$\frac{4}{5}(10y)+\frac{4}{5}(-x)+\frac{4}{5}(-15)\\ 8y-\frac{4x}{5}-12$