Question

Expand and simplify using foil method (-1 -4a)^2

Answer 1

Answer:

(-1-4a)^2

-(4a+1)^2

-(16a^2+1+8a)

-16a^2-8a-1

-16a^2-4a-4a-1

4a(-4a-1)+1(-4a-1)

(4a+1)(-4a-1)

is answer.

Step-by-step explanation:

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