Question

(iii)
(x - 9) (x + 7)​

Answer 1

Answer:

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Answer 2

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(Or)

Answer:

x^2 -2x -63

Step-by-step explanation:

(x-9) (x+7)

Using (x+a) (x+b) = x^2 + (a+b)x + (ab)

Here, a= -9 and b= 7

= x^2 + (-9+7)x + (-9×7)

= x^2 -9x +7x -63

= x^2 -2x -63 (Ans)

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