What is the answer to sqrt(x^2-7x)=sqrt(3x-21) ?

The answer to sqrt(x^2-7x)=sqrt(3x-21) is x=7

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sqrt(x^2-7x)=sqrt(3x-21)

x^{2} - 7 x = 3 x - 21

x = 7

Solution steps

x^{2} - 7 x = 3 x - 21

Square both sides:

x^{2} - 7 x = 3 x - 21

x^{2} - 7 x = 3 x - 21

Solve

x^{2} - 7 x = 3 x - 21 : x = 7, x = 3

x = 7, x = 3

Verify Solutions:

x = 7

True

, x = 3

False

The solution is

x = 7

L, t = 2 π \frac{L}{g}

3 18 + x = - 5

(4 y - 8)^{\frac{1}{3}} + 6 = 10

x + 36 = 100

2 x^{\frac{3}{2}} - 2 x^{\frac{1}{2}} = 0

What is the answer to sqrt(x^2-7x)=sqrt(3x-21) ?
The answer to sqrt(x^2-7x)=sqrt(3x-21) is x=7
Solve for x: sqrt(x^2-7x)=sqrt(3x-21)
The solution is x=7