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A certain number added to its square is 30. Find the number

A certain number added to its square is 30. Find the number
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2 votes
A certain number added to its square is 30. Find the number

User Yannisl
by
8.0k points

1 Answer

3 votes
x+x²=30
x²+x-30=0
(x+6)(x-5)=0
x=-6 or x=5
User Jrara
by
7.9k points
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