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Popular >

sqrt(68-4r)=r-2

Solution

68 - 4 r = r - 2

Solution

r = 8

Solution steps

68 - 4 r = r - 2

Square both sides:

68 - 4 r = r^{2} - 4 r + 4

68 - 4 r = r^{2} - 4 r + 4

Solve

68 - 4 r = r^{2} - 4 r + 4 : r = 8, r = - 8

r = 8, r = - 8

Verify Solutions:

r = 8

True

, r = - 8

False

The solution is

r = 8

Popular Examples

x + 3 = 11

3 = - x - 3 + 5

24 + 2 x = x

x + 2 x = 7

sqrt(2x+2)=3-sqrt(x)

2 x + 2 = 3 - x

Frequently Asked Questions (FAQ)

What is the answer to sqrt(68-4r)=r-2 ?
The answer to sqrt(68-4r)=r-2 is r=8
Solve for r: sqrt(68-4r)=r-2
The solution is r=8