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How to solve this step by step

How to solve this step by step-example-1
User Ivalkeen
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1 Answer

2 votes
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
User CCovey
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8.2k points