What is the answer to sqrt(1+8r-r^2)=4 ?

The answer to sqrt(1+8r-r^2)=4 is r=3,r=5

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sqrt(1+8r-r^2)=4

1 + 8 r - r^{2} = 4

r = 3, r = 5

Solution steps

1 + 8 r - r^{2} = 4

Square both sides:

1 + 8 r - r^{2} = 16

1 + 8 r - r^{2} = 16

Solve

1 + 8 r - r^{2} = 16 : r = 3, r = 5

r = 3, r = 5

Verify Solutions:

r = 3

True

, r = 5

True

The solutions are

r = 3, r = 5

\frac{2}{4 x - 3} = 2

k^{0.3} k + 2 = 20

x + 12 = x^{2} + 2 x - 8

8 - 2 x = x + 8

9 x - 16 = 6 x - 4

What is the answer to sqrt(1+8r-r^2)=4 ?
The answer to sqrt(1+8r-r^2)=4 is r=3,r=5
Solve for r: sqrt(1+8r-r^2)=4
The solution is r=3,r=5