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

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

Question 112685: Find the values of the polynomial for the given values of the variable.
-x squared -5x-6
x = -3
x = -2
Click here to see answer by MathLover1(6625)

Question 112686: Solve.
What expression raised to the fourth power is 81x to the 12th power y to the 8th power z to the 16th power
Click here to see answer by SHUgrad05(58)

Question 112687: Perform the indicated calculations. Write the answer in scientific notation.
(6 X 10 to the 12th power)(3.2 X 10 to the 8th power) Over
(1.6 X 10 to the 7th power)( 3 X 10 squared)
Click here to see answer by MathLover1(6625)

Question 112697: Multiply.
7w(2w-3)(2w+3)
Click here to see answer by SHUgrad05(58)

Question 112695: Solve.
(m squared-5mn+3n squared)(m squared+4mn-2n squared)
Click here to see answer by SHUgrad05(58)

Question 112693: Solve.
A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the polynomial
that represents its perimeter.
Click here to see answer by SHUgrad05(58)

Question 112679: Divide.
x squared -2x-35 Over x+5
Click here to see answer by SHUgrad05(58)

Question 112675: Solve.
A square has sides of length 3x - 2 cm. Express the area of the square
as a polynomial.
Click here to see answer by SHUgrad05(58)

Question 112678: Divide.
x squared -2x-35 Over x+5
Click here to see answer by SHUgrad05(58)

Question 112698: Multiply.
(x/3 + 3/4)(3x/4-3/5)
Click here to see answer by MathLover1(6625)

Question 112714: I am having problems understanding simplifying trinomials. The way I understand it I must factor them first, maybe that is where the problem lies. An example is Xsquared + 3X + 2 and Xsquared - 1. Thank you, Don Hora
Click here to see answer by Earlsdon(6287)

Question 112734: I asked previously about factoring/simplifying of polynomials. I did not just want the answer, rather I needed a step by step procedure. I am doing rational expressions and equations, and I need to simplify and cancel. HELP!(HA) Here is one example I hope you can understand it.
(t+2)cubed(tsquared+2t+1)(t+1)/numerator
(t+1)cubed(tsquared+4t+4)(t+2)denominator
or
4Xsquared-12X+9 /numerator
10Xsquared-11X-6 /denominator All explanations welcomed and appreciated. Don Hora
Click here to see answer by bharathi777(1)

Question 112672: Find the products.
a(a+5)(a-5)
Click here to see answer by jim_thompson5910(28509)

Question 112794: use the ac test to determine if trinomial is factored. find values of m and n.
x^2-3x+7
Click here to see answer by solver91311(16872)

Question 112906: how do I do this problem? (squreroot 7 -2)(squareroot 7 -8)
Click here to see answer by checkley71(8403)

Question 112942: x/6 - x/8 = 1
Click here to see answer by jim_thompson5910(28509)

Question 112956: w+3/4w/w-3/2w i need this simplified
Click here to see answer by jim_thompson5910(28509)

Question 112957: number problem. if one-half of one integer is subtracted from three-fifths of the next consecutive integer, the difference is 3. what are the two integers?
Click here to see answer by bucky(2189)

Question 112951: 2/5 = x-2/20 solve for x
Click here to see answer by chitra(359)

Question 112951: 2/5 = x-2/20 solve for x
Click here to see answer by jim_thompson5910(28509)

Question 113019: State method and factor completely
2p-6q+pq-3q^
The method to be used is the grouping of terms but I am stuck on the factoring part because the 3q^ is not factorable if I'm not mistaken. Can you assist me on understanding this problem.
Click here to see answer by jim_thompson5910(28509)

Question 113020: I am not to sure how to simplify and divide rational expressions, could some one please help me with this problem.
(2x^2 + 5x - 12/ 9x^2 - 16) /(2x^2 - 7x + 6/ 3x^2 - x - 4)
Thank you in advance for your help.
Click here to see answer by jim_thompson5910(28509)

Question 112724: this is the problem
If an object is propelled upward from the ground level with an initial velocity of 42.9 ft. per sec, it's height h in feet t seconds later is given by the equation h=-16t^2+42.9t. After how many seconds does the object hit the ground?
Click here to see answer by ankor@dixie-net.com(15639)

Question 113136: Factor each of the following polynomials completely.
-3xsquared-10s+8
Click here to see answer by stanbon(57251)

Question 113143: The price of an item is given by p = 2x squared - 100. Find the polynomial that represents the revenue generated from the sale of x items.
Click here to see answer by stanbon(57251)

Question 113087: If the sides of a square are decreased by 2cm, the area is decreased by 36m^. What were the dimensions of the original square?
(x-6)(x+6) Am I on the right track with this?
Click here to see answer by solver91311(16872)

Question 113317: I'm trying to factor polynomials; I'm doing word problems. However, I cannot understand how to find the factor of a number that will add up to the middle number. For example n^2+2n-112=0 - 2(n2+n-112)= 0 - (n )(n ) How do I find the multiples for 112. Is there an easy method?

Click here to see answer by Fombitz(13828)

Question 113336: see look i get this >> b + 7b - 30
( b - 3 ) ( b + 10 )
u put " b " at the begining of both ( )
then u ask ur self wat times wat = -30?
wich wud be -3 times 10
Now u have to make sure that when u add -3 + 10 u get 7
So can u please tell me how to do this problem!
10e - 12e + 3
wat i dont get the only two #s u can x together to get 3 is 1 times 3
But when u add 1 + 3 it dont = to -12 !
Wat am i doin wrong?!?
By the way my name is Angie
Click here to see answer by jim_thompson5910(28509)

Question 113349: Can someone please help me with this problem. I am really confused on what to do PLEASE HELP ME!!!!

Add -2 to both sides of the inequality 5 > 3. Then divide both sides of the inequality -20 > -30 by -2. Explain in your own words what happens in both examples and when the direction of the inequality symbol is reversed.

Click here to see answer by solver91311(16872)

Question 113063: My algebra worksheet says to Express each polynomial as the product of its greatest monomial factor and another polynomial.
One of the problems is: 9x^2y - 27xy^2
Click here to see answer by ankor@dixie-net.com(15639)

Question 113494:

54x^2y + 63xy + 9y
Click here to see answer by checkley71(8403)

Question 113511: Solve the equation

A = 1/2(b + B) for B

Totally lost on this problem. Can someone help me please.
Click here to see answer by checkley71(8403)

Question 113511: Solve the equation

A = 1/2(b + B) for B

Totally lost on this problem. Can someone help me please.
Click here to see answer by solver91311(16872)

Question 113510: Solve the equation
3/4x-2=5+2/3x
Can someone please help me with this problem?
Click here to see answer by jim_thompson5910(28509)

Question 113437: Please help solve this problem using the rational funtion t=(AB)/(A+B) If skip can do the project in 12 alone but the boss wants it done in 4 hours how quickly would the other staff member have to complete the report working alone if they both want to get it done in 4 hours I know the answer is 6 hours but not sure how to show the proper function. If you can help please do Thank you
Click here to see answer by scott8148(6628)

Question 113568:
Click here to see answer by stanbon(57251)

Question 113568:
Click here to see answer by MathLover1(6625)

Question 113570: (9x+7)(7x+5)

Click here to see answer by stanbon(57251)

Question 113570: (9x+7)(7x+5)

Click here to see answer by MathLover1(6625)

Question 113351: Can someone help me with this problem please.

1 divided by 4 equals 3 minus 2x minus 1 divided by x+2, it sort a look like this.... 1/4=3-2x-1/x+2
Click here to see answer by ankor@dixie-net.com(15639)

Question 113592: Multiply, using the vertical method.

(2r - 3s)(4r squared + 6rs + 9s squared)
Click here to see answer by checkley71(8403)

Question 113613: Give a ratio comparing the first quantity to the second, then as a percent.
2 hours for homework and 30 minutes for pracricing
Thank you!
Click here to see answer by checkley71(8403)

Question 113585:
-x*x-4*x+x*x*x*x-4
Click here to see answer by checkley71(8403)

Question 113701: x to 2nd + 2xy + y to the 2nd =
I'm drawing a blank and can't remember how to do this problem. The correct answer in the back of the book is (x + y) to the 2nd.
Click here to see answer by Earlsdon(6287)

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