# 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 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 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 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 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 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 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 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 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 SHUgrad05(58)

 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 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 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 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)