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Radical equations

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Solve: 2 sqrt(x+1) + 7 = x (for all real solutions)

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2sqrt(x+1)+7 = x
Get the radical by itself:
2sqrt(x+1) = x-7
Divide both sides by 2
sqrt(x+1) = (x-7)/2
square ...

Solution Summary

This shows how to solve a radical equation.

$2.19