4x (x – 2y)^2 – 12 y (x – 2y)^2
factorise the following expressions
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Answer:
4x³ + 64xy² -28x²y - 48xy³
Step-by-step explanation:
4x (x – 2y)²– 12 y (x – 2y)²
4x(x² + 4y² -4xy) -12y (x² + 4y² -4xy)
= 4x³ + 16xy² -16x²y -12x²y - 48xy³ + 48xy²
= 4x³ + 64xy² -28x²y - 48xy³
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