5x*4x=40

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Solution for 5x*4x=40 equation: 


Simplifying
5x * 4x = 40

Reorder the terms for easier multiplication:
5 * 4x * x = 40

Multiply 5 * 4
20x * x = 40

Multiply x * x
20x2 = 40

Solving
20x2 = 40

Solving for variable 'x'.

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

Divide each side by '20'.
x2 = 2

Simplifying
x2 = 2

Take the square root of each side:
x = {-1.414213562, 1.414213562}

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