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Simplifying
x2 + 4 + 4 = 64
Reorder the terms:
4 + 4 + x2 = 64
Combine like terms: 4 + 4 = 8
8 + x2 = 64
Solving
8 + x2 = 64
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-8' to each side of the equation.
8 + -8 + x2 = 64 + -8
Combine like terms: 8 + -8 = 0
0 + x2 = 64 + -8
x2 = 64 + -8
Combine like terms: 64 + -8 = 56
x2 = 56
Simplifying
x2 = 56
Take the square root of each side:
x = {-7.483314774, 7.483314774}
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