(-1.3a)(-5a)=

Solution for (-1.3a)(-5a)= equation:

Simplifying
(-1.3a)(-5a) = 0

Remove parenthesis around (-1.3a)
-1.3a(-5a) = 0

Remove parenthesis around (-5a)
-1.3a * -5a = 0

Reorder the terms for easier multiplication:
-1.3 * -5a * a = 0

Multiply -1.3 * -5
6.5a * a = 0

Multiply a * a
6.5a2 = 0

Solving
6.5a2 = 0

Solving for variable 'a'.

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

Divide each side by '6.5'.
a2 = 0

Simplifying
a2 = 0

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