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What is the solution of √5x+1-√x=5

User Blacky
by
5.3k points

1 Answer

6 votes

Answer: x= 16

Explanation:

Solve for x

√(5x + 1) − √x = 5

Add √x to both sides of the equation.

√(5x + 1)^2 = 5( + √x )^2

To remove the radical on the left side of the equation, square both sides of the equation.

√5x + 12 = (5 + √x)^2

Simplify each side of the equation.

5x + 1 = 25 + 10√x + x

Solve for 10√x.

10√x = 4x − 24

To remove the radical on the left side of the equation, square both sides of the equation.

(10√x)^2 = (4x − 24)^2

Simplify each side of the equation.

100x = 16x^2 − 192x + 576

Solve for x.

x = 9/4 , 16

Exclude the solutions that do not make √5x + 1 − √x = 5 true.

x = 16

User Wouter B
by
5.5k points
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