Posted by jane on Thursday, November 10, 2011 at 10:47am.
√(9x+55) = x+5
9x+55 = (x+5)^2 = x^2 + 10x + 25
x^2 + x - 30 = 0
(x+6)(x-5) = 0
x = -6,5
Check:
√(-54+55) = √1 = -6+5 = 1
√(45+55) = √100 = 5+5 = 10
Related Questions
Algebra - Solve sqrt:9x+55=x+5, Simplify and use comma to separate the answers
math - solve 2x^2+3x+8=0 and express the solutions in a+bi form. Let's use ...
Algebra 2 - 1. Simplify: sqrt6(sqrt2/2+sqrt3)-sqrt8 2. Simplify: sqrt(72x^3)-5x ...
Algebra - x^1/2 * y^1/6 *z^1/5. We are to use rational exponents to write an ...
College Algebra - 2|4x-4|-4=3 Solve. The solutions are x={_} (Simplify your ...
math (please double check my answers) - Simplify the following using the laws of...
college algebra--I really need help!! - solve the following exponential equation...
algebra,math,help - Use Property 2 to simplify each of the following radical ...
college algebra--need help please!! - solve the following exponential equation. ...
algebra,math - My qustion is for the following the problem reads as follows (x-1...
For Further Reading
