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

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 Algebra: Radicals -- complicated equations involving roots Solvers Lessons Answers archive Quiz In Depth

 Question 78915: I can't seem to come up with the correct way to answer the problem C = √3c-8 c=(√3C-8) the numbers in parentheses is all under the square root sign Click here to see answer by bucky(2189)

 Question 78895: can you please help me find the distance between (-5,6) and (4,-6) Click here to see answer by mathdoc314(58)

 Question 78884: Hey, I was wondering you you solve radical equations such as this. 3 to the square root of 2x+3 = the square root of x-7 And also, what is a exponential decay? Click here to see answer by mathdoc314(58)

 Question 78919: a+b=a+b for every value of a and b? Click here to see answer by funmath(2925)

 Question 78893: The base of a ladder is 3 feet away from the wall.The top of the ladder is 9 feet from the floor. Find the length of the ladder to the nearest thousandth. help me please? Click here to see answer by tutor_paul(490)

 Question 78891: can someone help me to simplify this? sqrt(8sqrt-2sqrt) Click here to see answer by tutor_paul(490)

 Question 78889: will someone check this for me please? sqrt+6=0 sqrt=-6 (sqrt3x+9}}})^2=(-6)^2 3x+9=36 3x=27 x=27 Click here to see answer by tutor_paul(490)

 Question 78933: The section is adding/subtracting radicals. My problem is subtracting. The equation is: The sqaure root of 120 - The square root of 270 - The square root of 300. Can you help me? Click here to see answer by stanbon(57219)
 Question 78933: The section is adding/subtracting radicals. My problem is subtracting. The equation is: The sqaure root of 120 - The square root of 270 - The square root of 300. Can you help me? Click here to see answer by tutor_paul(490)

 Question 78886: square root of y+10-(minus) square root of y-2 =2 Click here to see answer by tutor_paul(490)

 Question 78885: will someone help me find the distance between (2,0) and (-5,0)for some reason i think i know the answer but i can't do the problem in my head i get 7 as the answer but i can't solve it on paper help me please? Click here to see answer by Earlsdon(6287)

 Question 78878: can someone help me evaluate if possible please? -^3sqrt Click here to see answer by Earlsdon(6287)

 Question 78945: I need to simplify the cube root of -60 over the cube root of 120. I think it is the negative of the cube root of 4 over 2, but I am not certain. Click here to see answer by Edwin McCravy(8879)

 Question 78946: I need to rationalize the denominator of 5 over (7- radical 14). I get 1+ (radical 14 over 7). Is this the same as (7 + radical 14) over 7? Since 7/7 is 1, it should be equivalent. Click here to see answer by mathdoc314(58)
 Question 78946: I need to rationalize the denominator of 5 over (7- radical 14). I get 1+ (radical 14 over 7). Is this the same as (7 + radical 14) over 7? Since 7/7 is 1, it should be equivalent. Click here to see answer by fetter6(6)

 Question 79034: Add 3c^2 + 7c + 1 and 10c^2 – 8c – 4. Click here to see answer by checkley75(3666)

 Question 79035: Factor completely. b^2 – ab – 6a^2 I got this answer this time is it right? (b – 6a)(b + a) Click here to see answer by stanbon(57219)

 Question 79026: can i please get help with this problem? evaluate if possible sqrt Click here to see answer by checkley75(3666)

 Question 79041: can you help me simplify? sqrt= Click here to see answer by checkley75(3666)
 Question 79041: can you help me simplify? sqrt= Click here to see answer by stanbon(57219)

 Question 79027: will someone pleas check this for me? sqrt =sqrt/sqrt =3/4 Click here to see answer by checkley75(3666)

 Question 79038: can some one check this for me please? sqrt=5 sqrt=5 (sqrt)^2=52 y+2=25 y=23 Click here to see answer by jim_thompson5910(28476)

 Question 79040: help me please i am able to do + but not - sqrt=x-3 Click here to see answer by jim_thompson5910(28476)
 Question 79040: help me please i am able to do + but not - sqrt=x-3 Click here to see answer by stanbon(57219)

 Question 79025: can some one check this for me please? i have a triangle and i have to answer in simplified radical form. 20cm is on the left 15 cm is on the bottom and x is on the right. x^2+15cm^2=10cm^2 =x^2+225cm=100cm x^2=125 x=125 x=5sqrt Click here to see answer by stanbon(57219)

 Question 79043: Remove the parentheses and simplify. 9y – (–4y – 2x) Click here to see answer by Earlsdon(6287)

 Question 79030: can someone please check this for me? (2xsqrt)(3sqrt) =(2xsqrt)(3sqrt =6xsqrt Click here to see answer by Earlsdon(6287)

 Question 79067: I have a word problem i have done it over and over but it will not match my a b c and d answer can you help me? the base of a ladder is 3 feet away from the wall. The top of the ladder is 9 feet from the floor. Find the length of the ladder to the nearest thousandth. i get this as you can see i am in another place help please a^2=9^2+3^2 a^2=81+9 a^2=90 a=sqrt90 a=3sqrt10 a=2sqrt5 but my choices are; A 9.487 feet B 7.355 feet c 11.788 feet D 8.466 feet Click here to see answer by rapaljer(4667)

 Question 79032: sqrt=sqrt/sqrt Click here to see answer by rapaljer(4667)

 Question 79031: Write in descending-exponent form, and give the degree. 7x^3 – 6x^4 – x^6 – 4 Click here to see answer by rapaljer(4667)

 Question 79033: Divide. x^2 – 11x + 24/ x - 8 Click here to see answer by funmath(2925)

 Question 79106: I need to solve for w and find the solution set for the following: Sqrt (5w-1) = w-3. I multiplied both sides by sqrt (5w-1) and got (5w-1) = w-3(sqrt (5w-1). Click here to see answer by Earlsdon(6287)
 Question 79106: I need to solve for w and find the solution set for the following: Sqrt (5w-1) = w-3. I multiplied both sides by sqrt (5w-1) and got (5w-1) = w-3(sqrt (5w-1). Click here to see answer by ptaylor(2048)

 Question 79098: c. is this correct simplify: √80 minus √5 my answer: 3√5 Click here to see answer by Earlsdon(6287)

 Question 79105: I need the solution set for the following equation; (3t/(t+3)) + 4 = (2/(t+3)) Click here to see answer by checkley75(3666)

 Question 79094: c.. how can i factor this completely x^4+x^2-12 Problem #2 how can i convert -2.25 into a fraction? Problem #3 is this correct? simlify 1 + (2)/(3) divided by 2+ (1)/(2) My answer: (2)/(3) Click here to see answer by jim_thompson5910(28476)

 Question 79112: can some one help me simplify? (10+sqrt)(10-sqrt) Click here to see answer by checkley75(3666)

 Question 79111: can comeone check this for me please? 21+sqrt/3 =7+sqrt Click here to see answer by josmiceli(9649)

 Question 79118: x+2 = cube root(12x+8) thanks is advance Click here to see answer by ankor@dixie-net.com(15624)

 Question 79119: how do i decide all values of b in the following equations that will give one or more real number solutions? If an equation has solution how do i write a rule for judging by looking at it in standard form? a. 3x^2+bx-3=0 b. 5x^2+bx+1=0 c. -3x^2+bx-3=0 Click here to see answer by stanbon(57219)

 Question 79083: can someone tell me if i simplified this right? 21+sqrt/3 =7+sqrt Click here to see answer by ptaylor(2048)

 Question 79189: Can anyone help me to simplify by combining like terms: sqrt63 - 2sqrt28 + 5sqrt7 I appreciate any help with this radical expression. sean32485 Click here to see answer by ankor@dixie-net.com(15624)

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