Question

Solve. 10x^2 - 6 = 9

Answer 1

x = ±sqrt(3/2)

Explanation:

10x^2 - 6 = 9

Add 6 to each side

10x^2 - 6+6 = 9+6

10x^2 =15

Divide each side by 10

10x^2/10 = 15/10

x^2 = 3/2

Take the square root of each side

sqrt(x^2) = ±sqrt(3/2)

x = ±sqrt(3/2)