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Popular >

(20-r)^{1/2}=r

Solution

(20 - r)^{\frac{1}{2}} = r

Solution

r = 4

Solution steps

(20 - r)^{\frac{1}{2}} = r

Square both sides:

20 - r = r^{2}

20 - r = r^{2}

Solve

20 - r = r^{2} : r = 4, r = - 5

r = 4, r = - 5

Verify Solutions:

r = 4

True

, r = - 5

False

The solution is

r = 4

Popular Examples

4 x^{\frac{2}{3}} + 1 = 65

95=sqrt(32(0.5)d)

95 = 32 (0.5) d

a=sqrt(x^2-b^2)x

a = x^{2} - b^{2} x

solvefor m,x=(25s)(4m)^{0.5}solve for

m, x = (25 s) (4 m)^{0.5}

sqrt(25-2.5x^2)=0

25 - 2.5 x^{2} = 0

Frequently Asked Questions (FAQ)

What is the answer to (20-r)^{1/2}=r ?
The answer to (20-r)^{1/2}=r is r=4
Solve for r: (20-r)^{1/2}=r
The solution is r=4