0=-4x*5x

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Solution for 0=-4x*5x equation:


Simplifying
0 = -4x * 5x

Reorder the terms for easier multiplication:
0 = -4 * 5x * x

Multiply -4 * 5
0 = -20x * x

Multiply x * x
0 = -20x2

Solving
0 = -20x2

Solving for variable 'x'.

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

Add '20x2' to each side of the equation.
0 + 20x2 = -20x2 + 20x2
Remove the zero:
20x2 = -20x2 + 20x2

Combine like terms: -20x2 + 20x2 = 0
20x2 = 0

Divide each side by '20'.
x2 = 0

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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