Q1 of 90 Page 33

Using suitable identities find the products.

(x + 2) (x – 5)

Using identity -

(x + a)(x + b) = x2 + (a + b)x + ab, we get –


(x + 2)(x + (– 5)) = x2 + (2 + (– 5))x + 2× (– 5)


= x2 – 3x – 10


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