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Simplifying
8x2 + 4 = 972
Reorder the terms:
4 + 8x2 = 972
Solving
4 + 8x2 = 972
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + 8x2 = 972 + -4
Combine like terms: 4 + -4 = 0
0 + 8x2 = 972 + -4
8x2 = 972 + -4
Combine like terms: 972 + -4 = 968
8x2 = 968
Divide each side by '8'.
x2 = 121
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
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