teagan4christ teagan4christ

16-02-2017
Mathematics

contestada

Which trinomail is the product of the expression below?
(k-3)(k-1)

A. k^2-3
B. k^2-4k+3
C. k^2-4k-3
D. k^2+4k+3

Respuesta :

apologiabiology apologiabiology

16-02-2017

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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