Sagot :
Answer:
4x² - y² - 4xy
Solution:
Using FOIL Method:
(2x - y) ( 2x - y)
F = (2x) (2x) = 4x²
O = (2x) (-y) = -2xy
I = (-y) (2x) = -2xy
L = (-y) (-y) = y²
4x² - 2xy - 2xy - y²
4x² - y² - 4xy
4x² - y² - 4xy
Using FOIL Method:
(2x - y) ( 2x - y)
F = (2x) (2x) = 4x²
O = (2x) (-y) = -2xy
I = (-y) (2x) = -2xy
L = (-y) (-y) = y²
4x² - 2xy - 2xy - y²
4x² - y² - 4xy