Expanding the left side of the equation:
(Y^2 + 4Y - 4Y - 16) - (Y^2 - 6Y + 9) = 6Y - 25
Simplifying:
(Y^2 - 16) - (Y^2 - 6Y + 9) = 6Y - 25
Y^2 - 16 - Y^2 + 6Y - 9 = 6Y - 25
Combining like terms:
6Y - 25 = 6Y - 25
Therefore, the equation is true for all values of Y.
Expanding the left side of the equation:
(Y^2 + 4Y - 4Y - 16) - (Y^2 - 6Y + 9) = 6Y - 25
Simplifying:
(Y^2 - 16) - (Y^2 - 6Y + 9) = 6Y - 25
Y^2 - 16 - Y^2 + 6Y - 9 = 6Y - 25
Combining like terms:
6Y - 25 = 6Y - 25
Therefore, the equation is true for all values of Y.