(-3a)2(5a)=

Solution for (-3a)2(5a)= equation:

Simplifying
(-3a) * 2(5a) = 0

Remove parenthesis around (-3a)
-3a * 2(5a) = 0

Remove parenthesis around (5a)
-3a * 2 * 5a = 0

Reorder the terms for easier multiplication:
-3 * 2 * 5a * a = 0

Multiply -3 * 2
-6 * 5a * a = 0

Multiply -6 * 5
-30a * a = 0

Multiply a * a
-30a2 = 0

Solving
-30a2 = 0

Solving for variable 'a'.

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

Divide each side by '-30'.
a2 = 0.0

Simplifying
a2 = 0.0

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