(i) (x – y)2 – 6(x – y) + 5
(ii) (2x – y)2 – 11(2x – y) + 28
Answer :
(i) (x – y)2 – 6(x – y) + 5
Above terms can be written as,
(x – y)2 – 5(x – y) – (x – y) + 5
(x – y) (x – y – 5) – 1(x – y – 5)
Then,
(x – y – 5) (x – y – 1)
(ii) (2x – y)2 – 11(2x – y) + 28
(2x – y)2 – 11(2x – y) + 28
Above terms can be written as,
(2x – y)2 – 7(2x – y) – 4(2x – y) + 28
(2x – y) (2x – y – 7) – 4(2x – y – 7)
(2x – y – 7) (2x – y – 4)
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