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DanielleElmas [232]
3 years ago
14

Sqrt(x+7) -1=x yo what

Mathematics
1 answer:
MAVERICK [17]3 years ago
4 0

Hi

\sqrt{(x+7)   -1 = X

Let's square the whole thing  

so we have :    x+7 +1 = x²

                         x² +x+7 +1 = 0

                         x²+x+8 = 0

       

no easy way to see a common factor so, let 's resolve by using discriminate.  

Δ = 1-4*1*8

Δ = 1 -32

Δ = -31

as Δ  ≤ 0 , there is no Real answer to your equation  

however , if you need we can find imaginary solutions. Just ask in commentaries

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