(-7y(7))(-5y(2))=

Solution for (-7y(7))(-5y(2))= equation:

Simplifying
(-7y(7))(-5y(2)) = 0

Reorder the terms for easier multiplication:
(-7 * 7y)(-5y(2)) = 0

Multiply -7 * 7
(-49y)(-5y(2)) = 0

Remove parenthesis around (-49y)
-49y(-5y(2)) = 0

Reorder the terms for easier multiplication:
-49y(-5 * 2y) = 0

Multiply -5 * 2
-49y(-10y) = 0

Remove parenthesis around (-10y)
-49y * -10y = 0

Reorder the terms for easier multiplication:
-49 * -10y * y = 0

Multiply -49 * -10
490y * y = 0

Multiply y * y
490y2 = 0

Solving
490y2 = 0

Solving for variable 'y'.

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

Divide each side by '490'.
y2 = 0.0

Simplifying
y2 = 0.0

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