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 645038: I am an older student and just can't get the answer to this question. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -12x + 27y = 60 -6x – 6y = 30 Click here to see answer by MathTherapy(1421)

 Question 645131: how do i factor 6x^3 + 15x^2 + -9x Click here to see answer by jim_thompson5910(28476)
 Question 645131: how do i factor 6x^3 + 15x^2 + -9x Click here to see answer by stanbon(57224)
 Question 645131: how do i factor 6x^3 + 15x^2 + -9x Click here to see answer by MathLover1(6618)

 Question 645268: can someone show me how to go about graphing this parabola y=3/4x^2. i do know that is will open upward. Click here to see answer by stanbon(57224)
 Question 645268: can someone show me how to go about graphing this parabola y=3/4x^2. i do know that is will open upward. Click here to see answer by Alan3354(30968)

 Question 645273: Does the function have a minimum or maximum value. where does the minimum or maximum value occur what is the functions minimum or maximum value f(x)=-2x^2-16x-35 Click here to see answer by MathLover1(6618)

 Question 645303: Divide and show your work: (2x3 - x2 + 3x -1) ÷ (x + 2) I have no idea where to start, I thought this one was simple at first but the lecture did not prepare me for this one at all. Click here to see answer by kekegeter (57)

 Question 645440: Don't remember how to do these word problems. But the height is also giving me a trouble. If a stone is tossed from the top of a 350 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 350, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth’s place; include units in your answer. Click here to see answer by Alan3354(30968)

 Question 645585: what does this h(3), mean. I have no clue Click here to see answer by jim_thompson5910(28476)

 Question 645811: form a polynomial with real co-efficents given degrees and zeros. degree 5 zeros -5,-1,6+i Click here to see answer by stanbon(57224)

 Question 645882: Find the Polynomial of the 4th degree with the given zeros: 1-i, 3, and o Click here to see answer by solver91311(16868)

 Question 645903: find the complex zeros of the polynomial fucntion. write f in factored form f(x)=x^3+125 Click here to see answer by solver91311(16868)

 Question 646381: I am stuck on the problem in this link: http://i1179.photobucket.com/albums/x386/Hunterking100/1-1.png Please show step by step equations for a high school student on how to solve this kind of problem. Just divide the equation and simplify. Thank you. Click here to see answer by Alan3354(30968)

 Question 646477: (x - 4y)^2 + 4(x + y)(x - 3y) + x(3x + 3y + 3) The problem just says "simplify the expression" so i assume it is a polynomial. I started working the problem from right to left and then put in distributive property and got the problem wrong... I started with x^2(-4y)^2.... the appropriate box above would not let me select an option... Click here to see answer by solver91311(16868)

 Question 646778: What is x squared plus 5x plus 4 Click here to see answer by MathLover1(6618)

 Question 647023: ok so i think i have it but im not sure if it is right. I had to Graph each absolute value function and state its domain and range.I have to show all my work. h(x)=|-2x| I also had to Graph each piecewise function. I have to show all my work. X=-3 I can email you if you want to see my work if you like. Click here to see answer by Alan3354(30968)

 Question 646954: My name is jonathon and in need help simplifying this equation (y+x)(y+x)(y+x)(y+x) Click here to see answer by ankor@dixie-net.com(15628)

 Question 647322: why is x8 and x2 x6 and not x 4 Click here to see answer by VirtualMathTutor(25)
 Question 647322: why is x8 and x2 x6 and not x 4 Click here to see answer by stanbon(57224)

 Question 647391: Hey, I've tried this problem a few times. I think I may have gotten it when I added the 0x's. Please let me know what I'm doing wrong. It's long division. This is on the outside: this is on the inside: This is how I worked it: Outside: Inside: My answer: When I preview it my answer shows only 65 divided by x^2 but it is 12x - 65 over x^2 +4. The question is in there right though! Thank you! Carrie Click here to see answer by ewatrrr(10682)
 Question 647391: Hey, I've tried this problem a few times. I think I may have gotten it when I added the 0x's. Please let me know what I'm doing wrong. It's long division. This is on the outside: this is on the inside: This is how I worked it: Outside: Inside: My answer: When I preview it my answer shows only 65 divided by x^2 but it is 12x - 65 over x^2 +4. The question is in there right though! Thank you! Carrie Click here to see answer by stanbon(57224)

 Question 647567: 2p(a)+p(a-1) if p(x)=x^2+3 we know what the answer is but cannot figure out the steps to get to it helping son with algebra II homework Click here to see answer by swincher4391(726)

 Question 647868: the productof 5 and the difference of -2 and 10 Click here to see answer by fcabanski(874)

 Question 648155: Could you show your work, step by step, on how this expression 15x^2-16xy+4y^2 would be factorized. I have no idea how to do this. Click here to see answer by stanbon(57224)
 Question 648155: Could you show your work, step by step, on how this expression 15x^2-16xy+4y^2 would be factorized. I have no idea how to do this. Click here to see answer by jim_thompson5910(28476)

 Question 648273: I need help with this trinomial problem. Factor the following trinomial by grouping: 12x^3-27x^2-27x. I really need help I am so confused with this, please help me. Click here to see answer by jim_thompson5910(28476)

 Question 648298: Explain how to graph an equation in the rectangular coordinate system. Click here to see answer by jim_thompson5910(28476)

 Question 648432: I have just finished my math homework, however this one problem is giving me the blues. can someone please help me? Suppose that the function f is defined, for all real numbers, as follows. f(x)= { -1/2x+1 if x ≠ -2 { -2 if x = -2 Find the following. f (-4)= f (-2)= f (1)= Click here to see answer by lynnlo(4155)

 Question 648469: the previous answer I received wasnt correct. Can someone please help me with this. If possible can you show the work on how you got your answer? f(x)= { -1/2x+1 if x ≠ -2 -2 if x = -2 Find the following. f (-4)= f (-2)= f (1)= Click here to see answer by lynnlo(4155)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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