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Simplifying
x(x * 6) = 400
Reorder the terms for easier multiplication:
x(6x) = 400
Remove parenthesis around (6x)
x * 6x = 400
Reorder the terms for easier multiplication:
6x * x = 400
Multiply x * x
6x2 = 400
Solving
6x2 = 400
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '6'.
x2 = 66.66666667
Simplifying
x2 = 66.66666667
Take the square root of each side:
x = {-8.164965809, 8.164965809}
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