5a(-3a)=

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Solution for 5a(-3a)= equation: 


Simplifying
5a(-3a) = 0

Remove parenthesis around (-3a)
5a * -3a = 0

Reorder the terms for easier multiplication:
5 * -3a * a = 0

Multiply 5 * -3
-15a * a = 0

Multiply a * a
-15a2 = 0

Solving
-15a2 = 0

Solving for variable 'a'.

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

Divide each side by '-15'.
a2 = 0

Simplifying
a2 = 0

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

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