Answer:
x = ± 4
Explanation:
You need to get by itself, and to do this, you divide both sides by 3, like so:
Now take the square root of both sides:
x = ±4
3x^2 =48
Divide by 3
3x^2/3 = 48/3
x^2 = 16
Take the square root of each side
sqrt(x^2) = ±sqrt(16)
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