Which trinomail is the product of the expression below?

1 answer:

6 0

Foil or something

FOIL
First
Outer
Inner
Last

multipliy

First: k times k=k²
Outer: k times -1=-k
Inner: -3 times k=-3k
Last: -3 times -1=3

add

k²-k-3k+4=
k²-4k+4

B

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