SOLUTION: 1=3x^2 + 2x answer: x=-1 or 1/3 need a break down of how my text book got this answer

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Question 181799: 1=3x^2 + 2x

answer: x=-1 or 1/3
need a break down of how my text book got this answer
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
1=3x^2 + 2x
answer: x=-1 or 1/3
:
3x%5E2%2B2x-1=0
:
%283x-1%29%28x%2B1%29=0factor
:
now set factors = to zero
:
so 3x-1=0-->3x=1-->x=1/3
:
....x-1=0-->x=1