(X-4y)^2 + 4x(2x-4y)
Expanding the square term:(X-4y)^2 = X^2 - 8xy + 16y^2
Expanding the second term:4x(2x-4y) = 8x^2 - 16xy
Adding the two expanded terms together:X^2 - 8xy + 16y^2 + 8x^2 - 16xy
Combine like terms:9x^2 - 24xy + 16y^2
(X-4y)^2 + 4x(2x-4y)
Expanding the square term:
(X-4y)^2 = X^2 - 8xy + 16y^2
Expanding the second term:
4x(2x-4y) = 8x^2 - 16xy
Adding the two expanded terms together:
X^2 - 8xy + 16y^2 + 8x^2 - 16xy
Combine like terms:
9x^2 - 24xy + 16y^2