What is the answer to sqrt(x+4)+sqrt(21-x)=7 ?

The answer to sqrt(x+4)+sqrt(21-x)=7 is x=12,x=5

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sqrt(x+4)+sqrt(21-x)=7

x + 4 + 21 - x = 7

x = 12, x = 5

Solution steps

x + 4 + 21 - x = 7

Remove square roots

4 x^{2} - 264 x + 4356 = 4116 - 196 x

Solve

4 x^{2} - 264 x + 4356 = 4116 - 196 x : x = 12, x = 5

x = 12, x = 5

Verify Solutions:

x = 12

True

, x = 5

True

The solutions are

x = 12, x = 5

y, y^{\frac{3}{2}} = x

1 = 4 - x^{2}

y, x = y^{2} + 9

x - 2 = \frac{10}{x - 2} - 3

What is the answer to sqrt(x+4)+sqrt(21-x)=7 ?
The answer to sqrt(x+4)+sqrt(21-x)=7 is x=12,x=5
Solve for x: sqrt(x+4)+sqrt(21-x)=7
The solution is x=12,x=5