ALG. 2 - Quadratic Equations

Solve 6x^2 = 12x – 20.
a) 3 ± i√21 ÷ 3
b) 3 ± i√39 ÷ 3
c) 1 ± i√39
d) 1 ± 2i√21

I did this problem twice and still didn't get any of the answer choices as my answer! Please help!

Question

ALG. 2 - Quadratic Equations

Solve 6x^2 = 12x – 20.
a) 3 ± i√21 ÷ 3
b) 3 ± i√39 ÷ 3
c) 1 ± i√39
d) 1 ± 2i√21

I did this problem twice and still didn't get any of the answer choices as my answer! Please help!

anonymous · Answer

a

anonymous · Answer

first you have to get the zeros of this equation, which would involve trying to factor the quadratic

anonymous · Answer

or just take the square root of both sides

anonymous · Answer

6x^2 - 12x + 20 = 0

anonymous · Answer

Use quadratic equation with a = 6, b = -12, and c = 20

anonymous · Answer

Thanks, I  see what I did wrong now. Instead of -b ± √...... I did -b^2 ± √.....

anonymous · Answer

:)