Solve 2x2−8=120 (1 point) Responses no real solutions no real solutions x=±8 x is equal to plus or minus 8 x=±51−−√ x is equal to plus or minus square root of 51 x=±62−−√ x is equal to plus or minus square root of 62
To solve the equation 2x^2 - 8 = 120, we can start by adding 8 to both sides of the equation:
2x^2 - 8 + 8 = 120 + 8
2x^2 = 128
Next, we divide both sides of the equation by 2 to isolate x:
(2x^2) / 2 = 128 / 2
x^2 = 64
To solve for x, we can take the square root of both sides of the equation:
√(x^2) = √64
x = ±√64
x = ±8
Therefore, the solution to the equation is x = ±8.