Algebra
posted by Anonymous
10. Solve each radical expression. Check your solution.
1=√(2v3)
11. Solve each radical expression. Check your solution.
√(n+5)= √(5n11)
12. Tell which solutions, if any, are extraneous for each question.
√(12n)=n;
n= 4,n=3

Steve
#10. since 1=√1, you must have 2v3 = 1
#11.
√(n+5)= √(5n11)
n+5 = 5n11
n = 4
check: √9 = √9
#12. well, geez, just check them!
√(12(4)) = √(12+4) = √16 = 4 Since this is not equal to 4, that value is extraneous.
√(123) = √9 = 3
yep, that one is ok.
Respond to this Question
Similar Questions

math , help,algebra
i am up to this point in my problem but i don't know what to do next with it can someone show me. Directions: Simplify by combining like terms x radical(18) minus 3radical(8x^2) these are the steps that i've done so far. = x radical … 
Math
Find an equation of the line that bisects the obtuse angles formed by the lines with equations 3xy=1 and x+y=2. a. (3√2 +√10)x(√10 + √2)y2√10+√2=0 b. (3√2  √10)x+(√10  √2)y+2√10+√2=0 … 
math
How would I come about to the solution and what the answers to the question so I can help my son with his school work? 
maths
I will be thankfull to you if you help me to solve the below problem: 6√x11/3√x=2√x+1/√x+6 I tried to solve the above problem like this: (6√x11)(√x+6)=(3√x)(2√x+1) 6√x(√x+6)11(√x+6)=(3√x)(2√x)+(3√x)(1) … 
Algebra 2 Answer Check
Simplify by rationalizing each denominator. 1. 2/√3 A: 2√3 / 3 2. 18/√6 A: 3√6 Add or subtract. 3. 4√3  9√3 A: 5√3 4. √8  15√2 A: 13√2 5. √45 + √20 A: 5√5 … 
Algebra 2
Can someone help me with this radical expression please? 
8th grade algebra
Can you check my answers? 1. 3√20/√4 = 3√(5)(4)/2 = 3(2)√5/2 = 3√5 2. 4√15/√9 = 4√15/3 3. √12/√16 = √4(3)/4 = 2√3/4 = √3/2 4. √10/√5 = √2 
Algebra
1. Simplify the expression: 4√18+5√32 A.45√2 B.32√2 C.116√2 D.9√50 2. Simplify the expression: 7√53√80 A.5√5 B.4√75 C.5 D.4√75 3. Simplify the expression: √21(√3+√14) … 
Algebra
1.Simplify the radical expression. √5+6√√5 A.5√5 B.7√10 C.7√5 D.5√10 2.Simplify the radical expression. 2√6+3√96 A.14√6 B.14√96 C.5√96 D.50√6 3.Simplify … 
Algebra  Check My Work
For Question 18 Simplify the Radical Expression ***  My Answer 1.√45 3√5*** 2.√180x^2 6x√5*** 3.√150x^3 k^4 5xk^2√6x*** 4.√21y * 5√49y 35y√21*** 5.(The square root sign applies …