# 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 235218: how do you divide a x cubed by x squared? Click here to see answer by rfer(12657)

 Question 235352: One solution of -7x+k=0 is 4. Find the other solution Click here to see answer by jim_thompson5910(28550)

 Question 235415: A jar of dimes and quarters contains \$10.95. There were 93 coins in the jar. How many dimes were in the jar? Click here to see answer by checkley77(12569)

 Question 235470: if 0, 2, -2, 3, and 4-i are zeros of a polynomial with real coefficents, what is the smallest possible degree of the polynomial? Click here to see answer by stanbon(57299)

 Question 235491: Factor completely the polynomial and indicate any that are not factorable using integers. This is what I have come up with...but not sure I am doing this correctly 9x²+30x+16 9*16=144 9x²+6x+24x+16 3x(3x+2)+8(3x+2) =(3x+8)(3x+2) =9x²+6x+24x+16 =9x²+30x+16 Click here to see answer by solver91311(16877)

 Question 235494: i am so lost and i really need help. i have a test today in 4 hours, and its stressing me out! Click here to see answer by solver91311(16877)

 Question 235500: Factor completely ...not sure even how to go about doing this problem.... 8x(5th power)y³-6x(4th power)y(5th power)+12x²y³ Click here to see answer by stanbon(57299)

 Question 235527: Use the difference-of-square pattern to factor Am I doing this correctly? 25-49n² 5²-(7n)2 (5-7n)(5+7n) Click here to see answer by nerdybill(6958)

 Question 235624: factor. if the polynomial isn't factorable write prime. 3r-rt Click here to see answer by checkley77(12569)

 Question 235617: I am supposed to evaluate the polynomial when x = -4: 2x^2-2x+9 -16-(-16)+9= -16+16+9=9 The answer is 9? The negative 16 at the beginning confused me, I wasn't sure if it becomes paoitive or not. Click here to see answer by stanbon(57299)

 Question 235553: How do you start solving this equation?y+5/y=-6 ? Click here to see answer by checkley77(12569)

 Question 235751: I have no clue even where to begin this!!! Help! Click here to see answer by Jeff Gordon(65)

 Question 235756: Find the reciprocal and express it in scientific notation 6.25*10^-3 Click here to see answer by stanbon(57299)

 Question 235505: 5/x+3 is less than -3/x-1 solve algebraically the rational inequality Click here to see answer by stanbon(57299)

 Question 235351: The surface of a balloon varies directly as the square of its radius. The area is when the radius is 5 cm. What is the area when the radius is 10 cm? Click here to see answer by ankor@dixie-net.com(15647)

 Question 235438: Is there a trick to finding the answer to (m-3)^5? (m-3) to the fifth power thank you, Taylor Click here to see answer by josmiceli(9669)

 Question 235865: I am supposed to solve: x^2+14x-4=0 Is the answer x=0.28,14.28 I don't think that's right Click here to see answer by checkley77(12569)
 Question 235865: I am supposed to solve: x^2+14x-4=0 Is the answer x=0.28,14.28 I don't think that's right Click here to see answer by Edwin McCravy(8906)

 Question 235832: (x-5)^2=36 Click here to see answer by checkley77(12569)

 Question 235868: determine whether the iven number is a zero of the polynomials. 2, p(x)=x to the third power+two x to the second power+ twentynine x+fourty two Click here to see answer by Edwin McCravy(8906)

 Question 235872: divide the polynomials using long divisin. What is Q(x) and r(x)? (11x+20x2+12x3+2) by (3x+2) (elevenx+twentyx to the second power+ twelvex to the third power + two) divided by (threex+2) Click here to see answer by Edwin McCravy(8906)

 Question 235816: Complete the factorization 16x^7 = 2x^2( ) 32x^5 8x^4 8x^5 32^x this is multiple choice but can you work it out for me so i can get it? Click here to see answer by checkley77(12569)

 Question 235794: Hi. I have been trying for over an hour and can not solve the following polynomial inequality. Correct answer is given: [-3,1] Thank you in advance Click here to see answer by Alan3354(30993)

 Question 235917: A polynomial in x has degree 3. The coefficient of x^2 is 3 less than the coeffcient of x^3. The coeffcient of x is three times the coeffcient of x^2. The remaining coeffcient is 2 more than the coeffcient of x^3. The sum of the coeffcients is -4. Find the polynomial. Click here to see answer by ankor@dixie-net.com(15647)

 Question 235893: given a real zero, find all other zeros and write the polynomial in factored form. P(x)=x3+3x2-10x-24 (3is a zero) p(x)=x to the third power+three x to the second power-ten x-24(three is a zero) Click here to see answer by solver91311(16877)

 Question 236011: Use the FOIL method to find the product: (5x^8-3)(x^9-9) Is the answer 5x^17 + 3x +27 Click here to see answer by ankor@dixie-net.com(15647)

 Question 235982: a^3-3a^2 divide by -3a Click here to see answer by checkley77(12569)

 Question 236119: I am supposed to divide the polynomial: (42b^3+23b^2+32b+38)/(6b+5) The answer I get is 7b^2-2b+7 with a remainder of 3- would that be written as 7b^2-2b+7+3/6b+5, or would it be written as 7b^2-2b+7-3/6b+5? Click here to see answer by stanbon(57299)

 Question 236125: I am supposed to add: (4a^4-3a^3+4a^2+16a-10)+(a^5+11a^3+7a^2-4a+6)+(-7a^4+a^2-8a-5) The answer I got was a^5 +11a^4+14a^3+12a^2+4a-9 Is that right? Click here to see answer by mlm47688(4)

 Question 236186: how do you combine like term to polynomial like 6x+4x+2x Click here to see answer by jim_thompson5910(28550)

 Question 236244: How do I solve 1-9/x=7 ? Click here to see answer by checkley77(12569)

 Question 236259: x+2=3x-1 Click here to see answer by ichudov(499)

 Question 236318: t(3t-1)2nd power Click here to see answer by stanbon(57299)

 Question 236379: I am supposed to solve: 7/v= 8/v - 1/5 I got 39/5,but don't think it's right. I'm not sure I multiplied correctly. Click here to see answer by nerdybill(6958)

 Question 236376: I am supposed to add and simplify if possible: 8t/t^2-25 + t/t-5 Is the answer 9t/5 ? Click here to see answer by nerdybill(6958)

 Question 236422: Thank you for your help I am asked to divide (x-9)(x+8) (x+9)(x-3) ___________ divided by ____________ (x-6)(x+5) (x-6)(x+3) I did the factoring from ___________ / ____________ Click here to see answer by jim_thompson5910(28550)

 Question 236423: 2x^3+10x^2-5x-25 Click here to see answer by jim_thompson5910(28550)

 Question 236426: how do you factor 4ab-20a+15c-3bc complely? Click here to see answer by jim_thompson5910(28550)

 Question 236536: Another one of these damn problems. Consider the problem "link below". Explain why -5, 9, and -4 are not allowable replacements for the variable x. http://myeclassonline.com/ec/courses/40983/CRS-MTH100-3598686/MTH100_W6_Ass2_G2.gif Click here to see answer by Edwin McCravy(8906)

 Question 236629: a variable electric voltage in a circuit is given by the equation below, where t is the time (in s). If the voltage is on for 7s, when is V=0? V = t^4 - 19t^3 + 133t^2 - 405t + 450 Looking for three answers in seconds. Click here to see answer by jsmallt9(3296)

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