4a(5a)=

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Solution for 4a(5a)= equation: 


Simplifying
4a(5a) = 0

Remove parenthesis around (5a)
4a * 5a = 0

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

Multiply 4 * 5
20a * a = 0

Multiply a * a
20a2 = 0

Solving
20a2 = 0

Solving for variable 'a'.

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

Divide each side by '20'.
a2 = 0.0

Simplifying
a2 = 0.0

Take the square root of each side:
a = {0.0}

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