Question

3x^2+7=31
3x^2=?

Answer 1

I got 4, but when o plug it in, it don't work

Answer 2

(3x^2)+7=31 or 3x^2+7=31?

Answer 3

\[3X^2+7=31\]

Answer 4

3x^2 +7=31
3x^2 = 31-7
3x^2 =24

x^2 = 24/3 =8

x = sqrt8 = 2sqrt2

Answer 5

ohh, I did the last step wrong, lol

Answer 6

which is \[3x ^{2}+7=31\] \[3x ^{2}=31-7\] \[x ^{2}=24/8\] \[x=\sqrt{8}\]