Question

Solve for x.

2x2 - 4x = 0
A. 0, -4
B. 0, -2
C. 0, 2
D. 2, 4

Answer 1

C. 0, 2

Answer 2

1. factor out a 2 and an "x"
2. use your tools of algebra to solve for one of the x's
you have \(2x(x-2)\)
HINT: one of your x values is zero.

Answer 3

next time, @Brunette try to help them get the answer rather than just giving it to them. It helps them learn better.

Answer 4

im sure they just want the answer

Answer 5

Doesn't mean you have to give it to them :3

Answer 6

first factor..... (2x-2) (x+2)
-----
2 = (x -0)
zero out ...... x=0, x=-2

Answer 7

just trying to help them out, i get that it can be really stressful by the end of the semester