Mathematics
a(x - y) - b(x - y)2 is equal to:
(x - y)2 (a - b)
(x + y) (x - y) (a - b)
(x - y) (a - bx + by)
(x - y) (a - bx - by)
Factorisation
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Answer
a(x - y) - b(x - y)2
= a(x - y) - b(x - y)(x - y)
= (x - y)(a - b(x - y))
= (x - y)(a - bx + by)
Hence, option 3 is the correct option.
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