What is the answer to sqrt(y(y-15))-4=0 ?

The answer to sqrt(y(y-15))-4=0 is y=16,y=-1

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sqrt(y(y-15))-4=0

y (y - 15) - 4 = 0

y = 16, y = - 1

Solution steps

y (y - 15) - 4 = 0

Move

4

to the right side

y (y - 15) = 4

Square both sides:

y^{2} - 15 y = 16

y^{2} - 15 y = 16

Solve

y^{2} - 15 y = 16 : y = 16, y = - 1

y = 16, y = - 1

Verify Solutions:

y = 16

True

, y = - 1

True

The solutions are

y = 16, y = - 1

2 x - 3 = 5

x^{2} - 4 = 0

x + 5 + 20 - x = 7

x + 3 + x - 3 = 3

x = 3 x

What is the answer to sqrt(y(y-15))-4=0 ?
The answer to sqrt(y(y-15))-4=0 is y=16,y=-1
Solve for y: sqrt(y(y-15))-4=0
The solution is y=16,y=-1