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

Tutors Answer Your Questions about Polynomials-and-rational-expressions (FREE)

Question 197833: Find the product
(9x+4)^2
Click here to see answer by solver91311(16877)

Question 197831: Factor x^2-7x-44
factor by grouping h^4-h^3+h-1
Click here to see answer by Mathtut(3670)

Question 197845: (4y-3) (4y+3)
Click here to see answer by Mathtut(3670)

Question 197830: Factor, The expression by factoring out the largest possible common factor.
4b(2a + 9c) - 7d(2a + 9c)
Click here to see answer by Mathtut(3670)

Question 197855: x^5-7
x^2+8x+15

Click here to see answer by Alan3354(30993)

Question 197872: A rectangular pen has a length of 3 feet greater than its width. If both dimensions are increased by 5 feet, which expression gives the resulting increase in area?
a. 10x + 40
b. 13x + 40
c. x2 + 13x + 40
d. x2 + 10x =40
My attempt: area = length x width
original pen would be x(x+3)=x2+3x
new pen would be (x+5)(x+8)=x2+13x+40
However answer sheet says correct answer is A.
Thank you
Click here to see answer by josmiceli(9671)

Question 197939: find the lowest common denominatior
x/x+2 + 3/2=9/2
Click here to see answer by nerdybill(6958)

Question 197993: Hello, could you please help me find the product of this problem:
Click here to see answer by jim_thompson5910(28593)

Question 197994: please help me solve this equation:
Click here to see answer by stanbon(57307)

Question 197995: please help me find the product of this equation:
Click here to see answer by checkley77(12569)

Question 198002: please help me solve this problem: (x+y)^4
Click here to see answer by checkley77(12569)

Question 198002: please help me solve this problem: (x+y)^4
Click here to see answer by jim_thompson5910(28593)

Question 198040: I need to find the sum or difference with unlike denominators
1. (y+2)/ (y^2+5y+6) + (2-y)/(y^2+y-6)
I did (y+2)/(y+3)(y+2) + (2-y) /(y+3)(y-2)
I crossed out the y+2 and the y-2 and then left with 1/(y+3)(y+3) = 1/2y+6
2. (1)/(X) + (7)/(3x)
I times 1/x by 3/3 and got 1/x.3/3 + 7/3x.1/1 = 10/6x^2
Please help....I'm very confused
Thanks,
JC
Click here to see answer by user_dude2008(1861)

Question 195748: the polynomial 0.41h-0.018a-2.69 can be used to estimate the lung compacity, in liters,of a female with height "h", in centimeters, and age "a", in years. find the lung compacity of a 50 year old woman who is 160 centimeters tall.
Click here to see answer by MathTherapy(1423)

Question 198093: (3x^2-2x-5)(3x+2)
What polynomial is equivalent to the product shown below?
Click here to see answer by RAY100(1637)

Question 198083: At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate students drive more than 40 miles daily. If there are twice as many undergaduate students as there are graduate students, then what fraction of the commuters drive more than 40 miles dialy?
Click here to see answer by ankor@dixie-net.com(15649)

Question 198160: for h(x)=2x^2+6x-9 & k(x)=3x^2-8x+8
find h(x)-2k(x)
I would really really appreciate any help on this problem
I need help understanding the problem as well
Thank you in advance :)
Click here to see answer by stanbon(57307)

Question 198165: Find Product:
(X-2Y)^3
I have tried using pascal's triangle. But I am getting confused
Please help!
Thank you very much
Click here to see answer by stanbon(57307)

Question 198176: This problem confused me a whole lot. I dont really know what to do. Thank You.
Factor the polynomial
40w^11 + 16w^6
Thank You so much!
Click here to see answer by Earlsdon(6287)

Question 198235: Simplify
3[2p2-q(3p+4q)]-2[4q^2-3p(p-2q)]
Click here to see answer by jim_thompson5910(28593)

Question 198237: find the values of a, b,c, and d that make the equation true.
(4t^3-at^2-2bt+5)-(ct^3+2t^2-6t+3) = t^3-2t+d
Click here to see answer by jim_thompson5910(28593)

Question 198224: fourteen less than the square is the same as five times the number. find the number
Click here to see answer by arallie(162)

Question 198294: 4x^2+28x+c
Click here to see answer by solver91311(16877)

Question 198297: (3x-7)(2x=5)
Click here to see answer by jim_thompson5910(28593)

Question 198297: (3x-7)(2x=5)
Click here to see answer by solver91311(16877)

Question 198316: complex rational expressions:
9/y
_____
6/y+4
Click here to see answer by stanbon(57307)

Question 198338: solve for n
3^5n=3^5(3^2n)^2
Click here to see answer by edjones(7569)

Question 198322: complex rational expressions:
simplify
64r squared - 49s squared/pq
____________________________
8/q - 7/p

Click here to see answer by arallie(162)

Question 198319: simplifying complex rational expressions:

1/k+2
_____

3/k squared - 4
Click here to see answer by arallie(162)

Question 198218: I am having problems solving this problem :
two Y over Y squared minus 25 plus y +5 over y-5
can you please help me and send me the step by step
Click here to see answer by ankor@dixie-net.com(15649)

Question 197858: Hi. I have started a problem on my homework that looks like this

3X-1 <--- BOTTOM
-------- ----------- = divide
15X^2-4-11X <--- TOP
so far i have ended up with 5X-2
Click here to see answer by arallie(162)

Question 197829: Find the zeroes of f(x)=(x-2)3-3x+8.
2x3=x2+6x.
X2+x=20
Click here to see answer by arallie(162)

Question 197941: find the lowest common factor
9/x+3/x=x+5/x
Click here to see answer by arallie(162)

Question 197940: write the lowest common factor
x/5+x/3=8
Click here to see answer by arallie(162)

Question 198187: please help me with this problem 4s/s^2+3s
Click here to see answer by arallie(162)

Question 198381: Please help me solve this equation: x-1 multiplied by x-4/x^2-1
Click here to see answer by jim_thompson5910(28593)

Question 198383: Please help me solve this equation: x+4/x-4 divided by x^2-16/4-x
Click here to see answer by arallie(162)

Question 197557: Divide and simplify
(t*2+7t/t*2+3t-28) / (t/t-4)
Click here to see answer by arallie(162)

Question 197556: add.simplify , if possible.
(25a/3a-15)+( 9a /15a-75)
Click here to see answer by arallie(162)

Question 197553: 6-v over v-5 SUBTRACT 6v-7 over 5-v (example 6-v / v-5)
Click here to see answer by arallie(162)

Question 198409:
4/2x^2-9x-35 and 3/4x^2+20x+25
I need to find the lcd of these two, i know i am supposed to factor them out, but i am having trouble finding something that will factor.
Click here to see answer by Alan3354(30993)

Question 198430: The equation x^3+2x-8=0 has only one solution. This solution lies between
A. -2 and -1
B -1 and 0
C 0 and 1
D 1 and 2
E 2 and 8
Click here to see answer by edjones(7569)

Question 198432: simplify 8x-12/2x^3-3x^2
Click here to see answer by nerdybill(6958)

Question 198454: why do we factor polynomial equations? what are the answers called? how do t hose answers help me graph the equation?
Click here to see answer by arallie(162)

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