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Simplifying
4x(x) = 45
Multiply x * x
4x2 = 45
Solving
4x2 = 45
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '4'.
x2 = 11.25
Simplifying
x2 = 11.25
Take the square root of each side:
x = {-3.354101966, 3.354101966}
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