(i) x2 + xy – x – y
(ii) y2 – yz – 5y + 5z
Answer :
(i) x2 + xy – x – y
Take out common in all terms,
x(x + y) – 1(x + y)
(x + y) (x – 1)
(ii) y2 – yz – 5y + 5z
y2 – yz – 5y + 5z
Take out common in all terms,
y(y – z) – 5(y – z)
(y – z) (y – 5)
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