Question

Solve for x.

4x^2 - 10 = 90

Answer 1

X = 5

4x^2 - 10 = 90

4x^2 = 90 + 10

4x^2 = 100

X^2 = 100/4

X^2 = 25

Square root of 25 X= 5

Answer 2

Hope this helps :)

4x^2-10=90
Add 10 to each side
4x^2=100
Divide by 4
X^2=25
Get rid of the square
x=5