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Popular >

sqrt(x+9)+x=81

Solution

x + 9 + x = 81

Solution

x = 72

Solution steps

x + 9 + x = 81

Remove square roots

x + 9 = 6561 - 162 x + x^{2}

Solve

x + 9 = 6561 - 162 x + x^{2} : x = 91, x = 72

x = 91, x = 72

Verify Solutions:

x = 91

False

, x = 72

True

The solution is

x = 72

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Frequently Asked Questions (FAQ)

What is the answer to sqrt(x+9)+x=81 ?
The answer to sqrt(x+9)+x=81 is x=72
Solve for x: sqrt(x+9)+x=81
The solution is x=72