Question

Solve the equation for x: 14x2 - 28x = 0
{-14, 28}
{2, -7}
{0, 2}
no solution

Answer 1

C for Cat.

Answer 2

zero is pretty clearly one solution because each term has an x in it

Answer 3

{0, 2}

Answer 4

if you want to now if 2 works, check by replacing x by 2
you get
\[14\times 2^2-28\times 2=56-56=0\]