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in Factorization by (64.6k points)

Factorize each of the following algebraic expressions:

(a + 7) (a – 10) + 16

1 Answer

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Best answer

As given,

(a + 7) (a – 10) + 16

= a2 – 10a + 7a – 70 + 16

= a2 – 3a – 54

= a2 – 3a – 54 

= a2 + 6a – 9a – 54

= a (a + 6) -9 (a + 6)

= (a – 9) (a + 6)

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