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I don't understand how to solve this

I don't understand how to solve this
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5 votes
I don't understand how to solve this

I don't understand how to solve this-example-1
User Hedieh
by
8.7k points

1 Answer

5 votes
x^2+81=4x^2
3x^2=81
x^2=27
x=(27)^0.5
User Matthew Boynes
by
8.1k points
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