Question

Multiply.
(-7-a)(a+b-2) ​

Answer 1

Answer:

$( - 7 - a)(a + b - 2) \\ = - 7(a + b - 2) - a(a + b - 2) \\ = - 7a - 7b + 14 - {a}^{2} - ab + 2a \\ = - 5a - 7b - ab - {a}^{2} \\ = - \{ 5a + b(7 + a) + {a}^{2} \}$

Answer 2

Answer:

$( - 7 - a)(a + b - 2 ) \\ = - 7a {}^{2} - 7ab + 14 - a {}^{2} - ab + 2 \\ = 7a {}^{2} - 8ab + 2a - 14$

Step-by-step explanation:

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