Solve for x. 3x ^2 -4 = 8

x = ±2

Step-by-step explanation:

3x ^2 -4 = 8

Add 4 to each side

3x ^2 -4+4 = 8+4

3x^2 =12

Divide each side by 3

3x^2 =12

3x^2/3 = 12/3

x^2 = 4

Take the square root of each side

sqrt(x^2) = ±sqrt(4)

x = ±2

x = 2

Step-by-step explanation:

3x ^2 -4 = 8

+4

3x^2 = 12

3x^2/3 = 12/3

x^2 = 4

Square root 4 is 2

x = 2

it is probably the graph on the bottom right.

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