Question

(-3-a)² expansion tell fast​

Answer 1

Answer:

$9 + {a}^{2} + 6a$

Answer 2

Answer: a^2 + 6a + 9

Step-by-step explanation:

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

(-3-a)^2 = (-3)^2 + (-a)^2 + 2(-3)(-a)

= 9 + a^2 + 6a

= a^2 + 6a + 9

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