How to solve this step by step

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asked Dec 10, 2017 126k views

1 Answer

CCovey · Answer 1 · 2017-12-15T12:23:56+0000

yo has to factor since we assume that
if you have xy=0, x and y=0

7n^2-48n+36=0
trial and error
(7n-6)(n-6)=0

set each to zero
7n-6=0
add 6
7n=6
divide 7
n=6/7

n-6=0
add 6
n=6

n=6/7 or 6

How to solve this step by step

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