What are the solutions of the equation 2x2=8

x = ±2

Step-by-step explanation:

2x^2 =8

Divide each side by 2

2x^2/2 = 8/2

x^2 =4

Take the square root of each side

sqrt(x^2) = ±sqrt(4)

x = ±2

Steps to solve:

2x² = 8

~Divide 2 to both sides

2x²/2 = 8/2

~Simplify

x² = 4

~Take the square root of both sides

±√x² = ±√4

~Simplify

x = 2 or x = -2

Best of Luck!

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.