Algebra
posted by lee .
Hello Reiny, please check these problems for me and if they are not right WOULD YOU PLEASE HELP ME WITH THE CORRECT ONES THANKS!!!
1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27
2. Find the value: ^3 square root 27= 9
3. Write the following in simplified radical form ^4 square root 80= 4
PLEASE HELP QUICKLY!!

1 . I assume you meant
√(5x+9) = √(9x+13)
if so, then square both sides
5x + 9 = 9x + 13
4x = 4
x = 1, the answer checks in my equation
2. I can't figure out what you are saying.
are you finding the cuberoot of 27 ?
if so, the cuberoot of 27 = 3
3 again, is that supposed to the fourth root of 80 ?
80^(1/4) = (16)^(1/4) (5)^(1/4)
= 2 times cuberoot of 5 
last line should have said
2 times fourthroot of 5 
THANKS AGAIN Reiny!!
Respond to this Question
Similar Questions

Math
I can not find the solutions to the following problems using 2 methods: algebraically and geometrically. 1. X with the square root of 2 =9 2. X with the square root of 3 =27 3. X with the square root of 4 =27 Note: Fourth root I'm … 
math/algebra
can someone check me and see if this is correct. ã(4x+1) + 3 = 0 ã(4x+1)= 3 ã(4x+1).2= 3.2 4x + 1 = 9 4x = 9  1 4x = 8 x = 2 not sure what your symbol ã means but it appears like you mean square root. If that is the case … 
Algebra 2
could you walk me thorugh these problems simplfy square root 18  3 times sqaure root of 50 plus 5 times the square root of 80  2 times the square root of 125 I'm having troubles with the square root of 80 all of the other radicals … 
algebra
could someone please check these roblems for me and if they are not rightWOULD YOU PLEASE HELP E WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: … 
algebra
Help Fast PLEASE!! check for corrections on my problems 1.Rewrte the following in simplified radical form, Assume all variables represents positive real numbers: square root 48y^10= 4y^5 square root 3 2.Rationalize the denomintor and … 
Chemistry(Please check)
.50  x / x = 3.20e1 I need to solve for x. I was going to do .50 X 3.20e1 and then take the square root but this is not correct. I am not sure what to do. Thank you for your help. Math(Please help)  Reiny, Tuesday, April 17, 2012 … 
7th grade math Ms.Sue please
1. Which of these numbers can be classified as both real and irrational? 
Algebra
I'm studying for a test so I want to make sure I'm doing these problems right. Numerator (5a exponent 2) Denominator b3 All to the 1 exponent For a= 4. And b=2 My answer I get is 1/10 is the right ? 
Pre Algebra
State if each number is Rational,Irrational,or not a real number? 
Math
Combine like terms. 7a square root 2  a square root 2 + 16= My answer would be as follows: 7a square root 2 + 16 Can you please check to see if I got this correct