# Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 312297: I need help on this equation, what is a?: (3a-2)(4a+1)=5 Thanks! Click here to see answer by solver91311(16885)

 Question 312425: I am not sure what this question is asking and how to go about solving it? Could you please give me a hint as to where I need to go? I used substitution and arrived at the answer but it is asking me to use synthetic division and i am getting a wrong answer. Thank you. P(x)=3x^5-2x^4+3x^2-2x-5 Find the P(-1) using synthetic division. Be sure to show that you used synthetic division. (This is how the question reads.)Again, Thank you. Tina Click here to see answer by Fombitz(13828)

 Question 312435: simplify by removing factors of 1 y^2-8y+45/y^2+4y-45 what is the simplified form? Thankyou so much for all your help.. Click here to see answer by Fombitz(13828)

 Question 312409: How do you Divide this equation s^2-2s over s^2+3s-10 divided by s-5 over s+5 ? Click here to see answer by Fombitz(13828)

 Question 312473: simplify the following radical expression: 3 sqrt () -216x^2/x^2 a) sqrt() -6x b)-6 c)-6 sqrt()x d) 6 sqrt()-x Click here to see answer by rapaljer(4667)

 Question 312429: simplify by removing factors of 1 6y-24/6y what is the simplified form?. thankyou again in advance. Click here to see answer by Fombitz(13828)

 Question 312483: if y varies directly as x and y = 4 when x= -2, find y when x = 30. A) -4/15 B) 60 C) -60 D) 4/15 Click here to see answer by rapaljer(4667)

 Question 312510: simplify by removing factors of 1 y^2-8y+15/y^2+4y-45 what is the simplified form? Click here to see answer by Fombitz(13828)

 Question 312512: 9/y-7 I need to find all numbers for which the rational expression is undefined ' Thank you sooo much in advance. I am trying to read and understand my text but it is not helping me. Click here to see answer by Fombitz(13828)

 Question 312527: Hello, I am having difficulty solving some math problems. Find the lowest common multiply of y^2 + 18y + 81 and y^2 + 5y-36 ? Click here to see answer by Fombitz(13828)

 Question 312467: simplify: sqrt()27 - sqrt()8 + 2sqrt()2 a)3 sqrt() 3 b) 0 c)3 sqrt () 3 - 4 sqrt()2 d)3 sqrt () 3 - 2 sqrt()2 Click here to see answer by Fombitz(13828)

 Question 312523: A television commercial about cholesterol claimed that by using their pills at least one person lowered his cholesterol by 18%, a drop of 30 points! What was the original cholesterol level? Click here to see answer by rfer(12660)

 Question 312521: Suppose you are entered in a driving contest and you are to maintain an average speed of 60 mph for 2 miles. Your engine develops a miss and you can only maintain 30 mph for the first mile. The miss disappears after the first mile and the engine returns to normal. How fast must you drive the second mile to meet the overall average speed requirement? Click here to see answer by checkley77(12569)

 Question 312663: a rectangular table is 4 feet longer as long as it is wide. If the area is 144 ft to the 2nd power find the length and width. Click here to see answer by solver91311(16885)
 Question 312663: a rectangular table is 4 feet longer as long as it is wide. If the area is 144 ft to the 2nd power find the length and width. Click here to see answer by mananth(12270)

 Question 312667: x^2 + 4x-5=0 The solution is ( , ) or no solution? Click here to see answer by solver91311(16885)

 Question 312666: the product of the page numbers of 2 facing pages of a book is 110. Find the page numbers. Click here to see answer by mananth(12270)

 Question 312665: There are N teams in a league & the number of games played is given by the polynomial n to the 2nd power minus n = N. A womens soft ball league had 9 teams. what is the total number of games played? Click here to see answer by nyc_function(2733)

 Question 312825: Solve x^3 - x^2 - 7x +15 =0 over the set of complex numbers Click here to see answer by solver91311(16885)

 Question 312840: Hi,I am having a hard time with this problem,/x/... Click here to see answer by ichudov(499)