What is the answer to sqrt(y)*sqrt(y)=15 ?

The answer to sqrt(y)*sqrt(y)=15 is y=15

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sqrt(y)*sqrt(y)=15

y \cdot y = 15

y = 15

Solution steps

y y = 15

Move

15

to the left side

(y)^{2} - 15 = 0

Factor

(y)^{2} - 15 : (y + 15) (y - 15)

(y + 15) (y - 15) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

y + 15 = 0 or y - 15 = 0

Solve

y + 15 = 0 :

No Solution for

y \in R

Solve

y - 15 = 0 : y = 15

y = 15

Verify Solutions:

y = 15

True

The solution is

y = 15

x + 3 + 1 = 3 x

y^{2} - 9 = 9 - y

\frac{2 x}{5 + x} = 3 x

x + 6 + 2 - x = 4

What is the answer to sqrt(y)*sqrt(y)=15 ?
The answer to sqrt(y)*sqrt(y)=15 is y=15
Solve for y: sqrt(y)*sqrt(y)=15
The solution is y=15