(Y-9)(y+8)=

Solution for (Y-9)(y+8)= equation:

Simplifying
(Y + -9)(y + 8) = 0

Reorder the terms:
(-9 + Y)(y + 8) = 0

Reorder the terms:
(-9 + Y)(8 + y) = 0

Multiply (-9 + Y) * (8 + y)
(-9(8 + y) + Y(8 + y)) = 0
((8 * -9 + y * -9) + Y(8 + y)) = 0
((-72 + -9y) + Y(8 + y)) = 0
(-72 + -9y + (8 * Y + y * Y)) = 0
(-72 + -9y + (8Y + yY)) = 0

Reorder the terms:
(-72 + 8Y + -9y + yY) = 0
(-72 + 8Y + -9y + yY) = 0

Solving
-72 + 8Y + -9y + yY = 0

Solving for variable 'Y'.

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

Add '72' to each side of the equation.
-72 + 8Y + -9y + 72 + yY = 0 + 72

Reorder the terms:
-72 + 72 + 8Y + -9y + yY = 0 + 72

Combine like terms: -72 + 72 = 0
0 + 8Y + -9y + yY = 0 + 72
8Y + -9y + yY = 0 + 72

Combine like terms: 0 + 72 = 72
8Y + -9y + yY = 72

Add '9y' to each side of the equation.
8Y + -9y + 9y + yY = 72 + 9y

Combine like terms: -9y + 9y = 0
8Y + 0 + yY = 72 + 9y
8Y + yY = 72 + 9y

Reorder the terms:
-72 + 8Y + -9y + yY = 72 + 9y + -72 + -9y

Reorder the terms:
-72 + 8Y + -9y + yY = 72 + -72 + 9y + -9y

Combine like terms: 72 + -72 = 0
-72 + 8Y + -9y + yY = 0 + 9y + -9y
-72 + 8Y + -9y + yY = 9y + -9y

Combine like terms: 9y + -9y = 0
-72 + 8Y + -9y + yY = 0

The solution to this equation could not be determined.