Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

Tutors Answer Your Questions about Radicals (FREE)

Question 463560: √80-√45
Click here to see answer by edjones(7569)

Question 463559: 4+√5/3+√5
Click here to see answer by edjones(7569)

Question 463703: simplify these showing all work please, dont skip any steps.
1. √-36
2. -√3(√-3)
3. √-25
4. √-25√-9
5. (6i)^2
6. 1/i
Click here to see answer by robertb(4012)

Question 463881: is this following correspondence domain range
1-----------6
-6----------15
-16----------7
domain / range
Click here to see answer by stanbon(57219)

Question 463879: slove this equation
3-9=6
y + 5 y-5= y2-25

Click here to see answer by Alan3354(30959)

Question 463907: simplify if possible. if not then state not possible. SHOW ALL WORK.
1. 3√2-2√3
2. 2√3+√27-√1/3
3. √3(√6-2√3) <---the two is not square rooted. just the 6 and the three's.
4. √1/2*(√8+√2) * means multipy
5.√18-√3/√6
6. √a+√b/√a-√b
7. √5+1/√5-1 <---just the 5's are square rooted. not the one's.

show the work.
Click here to see answer by edjones(7569)

Question 463992: simplify if possible. if not then state not possible. SHOW ALL WORK.
1. 3√2-2√3
2. 2√3+√27-√1/3
3. √3(√6-2√3) <---the two is not square rooted. just the 6 and the three's.
4. √1/2*(√8+√2) * means multipy
5.√18-√3/√6
6. √a+√b/√a-√b
7. √5+1/√5-1 <---just the 5's are square rooted. not the one's.
show the work.
Click here to see answer by edjones(7569)

Question 464095: Please help with algebra problem.
For the following equation, state the value of the discriminate and then describe the nature of the solution(s).
20x^2+5x-12=0
What is the value of the discriminate?
How many solutions?
Thank you.
Click here to see answer by Gogonati(809)

Question 464093: Please help me to factor the trinomial
b^3-3b^2-54b
Thank you.
Click here to see answer by Gogonati(809)

Question 464098: Please help me solve this algebra problem.
Simplify by removing factors of 1.
(s^2-9)/(s+3)^2
Thank you

Click here to see answer by sudhanshu_kmr(1152)

Question 464166: solve algebraically. 3sqrt(7x-5) -4=8
Click here to see answer by ewatrrr(10682)

Question 464180: solve the radical equation. sqrt(4x+5)=2+sqrt(2x-1)
Click here to see answer by lwsshak3(6460)

Question 464193: wirte with positive exponets. Simplify if possible.
(1000)^-4/3
Click here to see answer by Alan3354(30959)

Question 464237: Use the laws of exponets to simplify.
(4)^3/4 times (4)^5/8
Click here to see answer by reviewermath(500)

Question 464511: why i cannot simply the expression = square root of 4x^2 - 25y^2
Click here to see answer by stanbon(57219)

Question 464542: can you help me with this? multiply the following:
(sqrt of 6 + 2 sqrt of 5)(sqrt of 6 - 2 sqrt of 5)
Click here to see answer by mpc12381(4)

Question 464564: I have a question...I cannot figure out how to write the answer out to this... divide and simplify by taking roots...3sqrt56/3sqrt7...is it written as 3sqrt8?
Click here to see answer by ewatrrr(10682)

Question 464614:
Click here to see answer by robertb(4012)

Question 464857: I'm having trouble simplifying this problem and have to write out how it is done. Any help would be great.
16.5sqrt(100)
Click here to see answer by Alan3354(30959)

Question 464928: how would you change the graph of y=sqrt(x) to get the graph of y=sqrt(x+5)? (hint: which direction does the graph shift?)
Click here to see answer by richard1234(5390)

Question 464934: I need to simplify this radical expression and I am having trouble with it. I need to see every step involved in simplifying this please.
Any help would be greatly appreciated.

Click here to see answer by josmiceli(9649)

Question 465226: Hello Math Gurus....
Here is my question:
"Use rational exponents to write x^(1/6)*y^(1/5)*z^(1/4)as a single radical expression".
Thank you in advance for your expertise and assistance!
Click here to see answer by ewatrrr(10682)

Question 465495: simplify the radical square root of 90.
Click here to see answer by Alan3354(30959)

Question 465534: I am confused on how to solve this problem
3a/a^2-2a-15 -a/a+3=2a/a-5
I am trying to figure out solving Equations Containing Rational Expressions. I can't figure this out cause all are fractions.
Thanks
Click here to see answer by algebrahouse.com(1079)

Question 463702: help?! please show all work so i know how to actually do these.
solve for the unknown and check the work.
1. 4√x=20
2. √y+√y+7=7
3. √x+11=√x+1
if its confusing.. in number 2 the √y+7 is a square root
and in number 3 the x+11 is one square root and x+1 is another one. just so you dont think that just the y is or just the x. (:
Click here to see answer by lwsshak3(6460)

Question 465647: 100squarred simplyfyed
Click here to see answer by sofiyac(695)

Question 464581: I am having a hard time with my math today. I have a problem that I am close to answering but I cannot figure out the last part. Could someone help me finish this up please? multiply. (sqrt6+2sqrt5)(sqrt6-2sqrt5). I have (sqrt(6)^2-2sqrt30+2sqrt30)-(2sqrt5)^2=sqrt(6)^2-(2sqrt5)^2=6-??? I cannot figure out the (2sqrt5)^2. Helllp!!!
Click here to see answer by lwsshak3(6460)

Question 464090: Simplify by taking roots of the numerator and the denominator. Assume that all expressions under radicals represents positive numbers.
∛(1000x^11 )/y^3

Any help would be greatly appreciated. Thank you.
Click here to see answer by lwsshak3(6460)

Question 465839: looking for the solution and explanation for this problem
square root x+2 = 5- square root x-3
thanks
Click here to see answer by lwsshak3(6460)

Question 463375: solve the equation by completing the square. the equations has real number solutions.
3x^2-2x-56=0
Click here to see answer by lwsshak3(6460)

Question 465887: I am supposed to solve this:
3+ root symbol (z-8) = root symbol(z+7)
I am not sure what to do here, any help would be appreciated! With explanation if possible!
Click here to see answer by solver91311(16868)

Question 465929: simplify
sqrt100 + sqrt25 - sqrt64
Click here to see answer by jorel1380(2518)

Question 462508: 3x^4-2x^2-1=0 find the real solution of this equation
Click here to see answer by lwsshak3(6460)

Question 466222: How would you simplify 16 1/2 in a paragraph
Click here to see answer by Alan3354(30959)

Question 466254: simplify
sqrt180 - sqrt120
Click here to see answer by algebrahouse.com(1079)

Question 466350: i need help,
√12+3√75-2√27
Click here to see answer by Alan3354(30959)

Question 466825: Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this.
√(x^2-4x+4)
Click here to see answer by stanbon(57219)

Question 466945: If the two legs of a triangle measure 3 and 4 feet, how long must the hypotenuse be?

Click here to see answer by Big Poop(157)

Question 467029: use rational exponents to write 4v3 times 3v7 as a single expression
the 2 v's are representing square root symbols. Hopefully I can explain the rest without confusion you know there can be numbers outside of the square root, there can also be numbers outside the square root, but are raised (like a power) the 4 and 3 are like that.
Click here to see answer by stanbon(57219)

Question 467027: add. Simplify by collecting like radical terms, if possible. Assume that all expressions under radicals represent non-negative numbers.
2vy + 7vy=
the two v's are suppose to be square root symbols
Click here to see answer by stanbon(57219)

Question 467023: The formula r=2v5l can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will a car skid at 80 mph?
the v in the equation is suppose to represent a square root.
Click here to see answer by Alan3354(30959)

Question 465876: how can you simplify the square root of 252 X squared? thank you.
Click here to see answer by gwendolyn(128)

Question 467263: (5+ sqrt 3)/(2+ sqrt 3)
More than the answer I want to learn how to solve these problems.
Click here to see answer by solver91311(16868)

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