5x(2x)=40

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Solution for 5x(2x)=40 equation: 


Simplifying
5x(2x) = 40

Remove parenthesis around (2x)
5x * 2x = 40

Reorder the terms for easier multiplication:
5 * 2x * x = 40

Multiply 5 * 2
10x * x = 40

Multiply x * x
10x2 = 40

Solving
10x2 = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '10'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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