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

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

Question 84167: Find (4a-2b + c) - (5c+ a - 4b).
Click here to see answer by funmath(2925)

Question 84167: Find (4a-2b + c) - (5c+ a - 4b).
Click here to see answer by Earlsdon(6294)

Question 84161: Find the degree of the polunomial 4hk + 2h- k3
Click here to see answer by Edwin McCravy(8999)

Question 84166: The area of a square is 4p2- 4p + 1 square inches. What is the length of the side of the square?
Click here to see answer by Earlsdon(6294)

Question 84165: Factor 3a2-13a+ 12
Click here to see answer by rapaljer(4667)

Question 84174: Factor each product..
(p-3)(p+5)
Click here to see answer by rapaljer(4667)

Question 84182: Solve equation by using the zero product theorem and factoring.
22y2= -11y
h2- 13h + 36 = 0
5a2 - 33a = 14
24cubed= 6n
m2 + 81 = -18m
Click here to see answer by checkley75(3666)

Question 84171: Find each product...
(5t + s)2
Click here to see answer by checkley75(3666)

Question 84172: Find each product..
(a+2)(a2- 3a-7)
Click here to see answer by sofiyacherni(99)

Question 84255: Solve by completing the square and then graph it.
x2 + 8x + 12= 0
Click here to see answer by vertciel(183)

Question 84256: Find the next three terms in the geometric sequence 1458, 486,162, 54,...
Click here to see answer by checkley75(3666)

Question 84254: Find each product.
(5t + s)2
Click here to see answer by checkley75(3666)

Question 84253: Evaluate 4.03 x 10^-4
-------------
1.3 x 10^2
Express your answer in scientific and standard notation.
I have 0.031, 3.1 x 10^-2 but my teacher said the -2 is wrong.
Click here to see answer by checkley75(3666)

Question 84262: Solve 6= 3t2 + 2t by using the Quadratic Formula. Round to the nearest tenth if necessary.
Click here to see answer by checkley75(3666)

Question 84252: Simplify..Assume that no deminator is equal to zero.
(-2x4)3 (-4x2y6)3.
I have 512x12y9 but my teacher said it was wrong..and crossed out the 9 behind the y.
Click here to see answer by checkley75(3666)

Question 84295: josefina hit a tennis ball into the air with an initial upward velocity of 16 feet per second. The height, h in feet of the ball above the ground can be modeled by h=-16t^2+16t+3, where t is the time in seconds after josefina hit the tennis ball. Find the time it takes the ball to reach 7 feet above the ground.

THANK YOU
Click here to see answer by vertciel(183)

Question 84259: The population of Las Vegas, Nevada has been increasing at an annual rate of 7.0%. If the population of Las Vegas was 404, 288 in the year 1999, predict its population in 2010. I have around 850, 966 people but I don't know if that is right.
Click here to see answer by PS(13)

Question 84312: The area of rectangle of length x is given by 3x^2+5x. find the width of the rectangle
Click here to see answer by checkley75(3666)

Question 84312: The area of rectangle of length x is given by 3x^2+5x. find the width of the rectangle
Click here to see answer by PS(13)

Question 84298: This equation calls for finding the GCF, but in my text I see nothing in parenthesis, is this is a trick?
this is the equation;
(6y-3y)(y+7)
Click here to see answer by checkley75(3666)

Question 84292: 4x+20
_____
3x^2+17x+10

Click here to see answer by checkley75(3666)

Question 84300: Which of the following is not a polynomial?
A)4x^3 + 5x – 1
B)2x – 1/x
C)3xy^2 + xy
D)24

Click here to see answer by sofiyacherni(99)

Question 84266: Factor by using the zero product theorem and factoring..
m2 + 81= -18m
Click here to see answer by sofiyacherni(99)

Question 84321: This equation calls for to factor each of the following trinomials completely
2a^3-52a^2b+96ab^2
Click here to see answer by Earlsdon(6294)

Question 84323: Hello! My name is Salem and I am a concurrently enrolled student at Carl Albert State College. I have just started College Algebra and I asked my high school math teacher to help me with this question and neither of us can get it right. Can you please help me? It is due tomorrow!
Here is the question:

In words, it is: (x over x squared minus one), minus (x plus three over x squared minus x) equals (negative three over x squared plus x).
Click here to see answer by rapaljer(4667)

Question 84308: State which method should be applied as the first step for factoring the polynomial.
2a^2 + 9a + 10
A)Find the GCF.
B)Group the terms.
C)Factor the difference of squares.
D)Use the ac method (or trial and error).

Click here to see answer by funmath(2925)

Question 84272: x-3/x^2+5x-6
Click here to see answer by funmath(2925)

Question 84267: Factor by using the zero product theorem and factoring..
5a2 - 33a = 14
Click here to see answer by funmath(2925)

Question 84267: Factor by using the zero product theorem and factoring..
5a2 - 33a = 14
Click here to see answer by rapaljer(4667)

Question 84258: A new motor home cost $89, 000. It is expected to depreciate 9% each year. Find the value of the motor home in 4 years. I have $61, 031 but I don't if it is right.
Click here to see answer by tutor_paul(490)

Question 84374: How do I determine if the following trinomial is a perfect square?
x^2 – 16x + 64

Click here to see answer by tutorcecilia(2152)

Question 84407: factor completely. State which method should be applied as the first step, then continue to factor the polynomial completely:
2p-6q+pq-3q^2
Click here to see answer by josmiceli(9817)

Question 84401: factor the polynomial completely: -3s^2-10s+8 Please Help!!!
Click here to see answer by checkley75(3666)

Question 84425: use the quadric formula to solve the equation
2x^2-5x=3
Click here to see answer by checkley75(3666)

Question 84424: find two consecutive positive integers such that the sum of their square is 85.
Click here to see answer by checkley75(3666)

Question 84430: The equation h=-16t^2+112t gives the height of an arrow, shot upward from the groung with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height of 180 ft.
Click here to see answer by checkley75(3666)

Question 84422: solve each by completing the square
2x^2+10x+11=0
Click here to see answer by bucky(2189)

Question 84427: A garden area is 30 ft long and 20 ft wide. A path of uniform width is set aroung the edge. If the remaining garden area is 400 ft^2, what is the width of the path?
Click here to see answer by scott8148(6628)

Question 84501: Hi! I was wondering if you could help me with the following problem.
Factor the following.
4x^2-8x
When I worked this problem I got 4x(x-2) would the answer to this problem be that answer or prime or is there another possible answer.
Thanks for your help.
Melissa
Click here to see answer by Earlsdon(6294)

Question 84515: Factor completely: ax-ay+x^2-xy I am so Confused;0?
Click here to see answer by jim_thompson5910(28715)

Question 84520: I need som serious help with this word problem: A triangle has sides 2x-5, 3x+1, and 4x+2. Find the polynomial that represents it's perimeter.
(a) 9x-2
(b)(2x-5)(3x+1)(4x+2)
(c)10x-8
(d)24x-10
My answer is D...Am I right?
Click here to see answer by venugopalramana(3286)

Question 84521: Okay, if the profit on a watch is given by P=x^2-13x-80, where x is the number of watches sold per day. How many watches were sold on a day when there was a $50 loss?
I tried and I keep getting 15. Am I right?
I do NOT have a clue. Please Help!!!
Thank You
Click here to see answer by venugopalramana(3286)

Question 84518: Hi Everyone, my name is Nikki and I need help with simplifying (y^7/z^6)^3. The question is multiple choice, however I am curious to see how it is solved.
(a)y^21/z^18
(b)y^21/z^6
(c)y^10/z^6
(d)y^10/z^9
Click here to see answer by tutor_paul(490)

Question 84525: Hi Everyone, I was supposed to factor y^3-12y^2+36y completely. I came up with this solution: y(y+12)(y-3) Am I right?? Thanks ;0)
Click here to see answer by tutorcecilia(2152)

Question 84512: Factor completely: b^2-ab-6a^2
(a)(b+3a)(b-2a)
(b)(b+6a)(b-a)
(c)(b-3a)(b+2a)
(d)(b-6a)(b+a)
My answer is C am I right?
Click here to see answer by bucky(2189)

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