Question

4. Solve by factoring or finding square roots.5x - 15xo0,3O-3,53, -3

Answer 1

X = 3, -3 . It should be D

Answer 2

5x^2 - 15x = 0

then

5x^2 = 15x

divide by 5

x^2 = 3x

now divide by x, -x

x = 3, -3

Then answer is

OPTION D) 3, -3