Tutors Answer Your Questions about Polynomials-and-rational-expressions (FREE)
Question 600707: I am having problems understanding my math home work. It says to Factor completely. Remember to look first for a common factor and to check by multiplying. If a Polynomial is prime,state this.
-36a^2 -96ab -64b^2
Can you show me how to work this problem step by step and then show me how to check it as well. I am a little lost on how to do this.
Click here to see answer by jim_thompson5910(35256)  |
Question 600799: I can not understand how to factor trinomials in ax^2+bx+c format. I have been studying this for two weeks at school now. I understand the process, but I for some reason am horrible at this. Here is a problem I need help solving.
-4c^2+19c-21
I need to find the two numbers that equal the variable.
Click here to see answer by mananth(16946)  |
Question 601035: Find the midpoint between the two points: (2,2), (6,4)
this is as far as i get (6 - 2)^2 + (4 - 2)^2
4x4 + 2x2
16 + 4 = sqrt20
then i dont know what else to do. can somwone help finish the problem and tell me if i am doing it right
Click here to see answer by Alan3354(69443)  |
Question 601035: Find the midpoint between the two points: (2,2), (6,4)
this is as far as i get (6 - 2)^2 + (4 - 2)^2
4x4 + 2x2
16 + 4 = sqrt20
then i dont know what else to do. can somwone help finish the problem and tell me if i am doing it right
Click here to see answer by solver91311(24713)  |
Question 601063: Referring to the figure, find the sine of angle R.Reduce the answer to the lowest terms.
((there is a right triangle the top corner is an R, below that there is a 6 and below that there is a T, the hypothenuse is a 10, the far corner is a
S, the horizontal line has an 8)) i hope u understand my little figure.
R
| \
| \
6| \10
| \
|_ \
T|_|_____\S
8
Click here to see answer by jim_thompson5910(35256) |
Question 601395: simplify the expression shown.
sqrt5 (6 sqrt2 - sqrt5)
I have no idea how to do this, i have looked in my math book for examples or similar problems and i cant find anything that looks like it. i dont know if its a no solution problem or the problem is already in simplied form or something, i do online school so its not easy when i get stuck, its not like if i went to public school and asked the teacher for help in person. can someone help me with this problem please.
Click here to see answer by josmiceli(19441)  |
Question 601418: Referring to the figure, find the missing length x. Round the answer to the nearest hundredths.
(i dont know how to put the figure but im going to try to make it,its a right triangle and has a 45 degree angle, i hope you understand it)
| \
| \
| \
| \x
| \
|_ \
|_|______\
8
Click here to see answer by jim_thompson5910(35256) |
Question 601490: The area of a rectangular athletic field is represented by the expression -8y^9 - 32z^4 + 56x^2 square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense length times width) of the athletic field. Include correct units with your solution.
The furthest I know is that a common factor is 8? Please help! Thank you!
Click here to see answer by Alan3354(69443) |
Question 601651: can somebody check this? I've fixed it once but my instructor says it is still wrong.
Factor Completely. If a polynomial is prime, state this.
-2a^2(35a^2 + 34a - 8)
-2a^2(35a + 14a + 20a - 8)
-2a^2(7a(5a -2) + 4(5a -2))
-2a^2(5a - 2)(7a +4)
He says that the signs are wrong and the factorization is as well?
Click here to see answer by jim_thompson5910(35256) |
Question 601647: can somebody check this? I've fixed it once but my instructor says it is still wrong.
Factor Completely. If a polynomial is prime, state this.
-2a^2(35a^2 + 34a - 8)
-2a^2(35a + 14a + 20a - 8)
-2a^2(7a(5a -2) + 4(5a -2))
-2a^2(5a - 2)(7a +4)
He says that the signs are wrong and the factorization is as well?
Click here to see answer by veronica1289(7) |
Question 601695: Please help. I am confusing myself more every time I try to work this.
Factor the following expression completely:
12y5 34xy4 + 14x2y3
Also, if you could please tell me if I answered this right I would appreciate it.
Question: Andrew factored the expression 24x^3 8x^2 32x as 8x(3x^3 x^2 -4x) . But when Melissa applied the distributive law and multiplied out 8x(3x^3 x^2 4x), she got 24x^4 8x^3 32x; thus, Andrews solution does not appear to check. Why is that? Please help Andrew to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, so state.
Answer:Since Andrew stared his factoring with 8x he should have reduced the quotent inside the parenthesis by 1. Also Melissa should have gotten 24x^4 - 8x^3 - 34x^2. The correct answer should have been 8(3x^3 - x^2 = 4x) this would have checked to the beginning expression.
Thank you in advance!
Click here to see answer by jim_thompson5910(35256) |
Question 601695: Please help. I am confusing myself more every time I try to work this.
Factor the following expression completely:
12y5 34xy4 + 14x2y3
Also, if you could please tell me if I answered this right I would appreciate it.
Question: Andrew factored the expression 24x^3 8x^2 32x as 8x(3x^3 x^2 -4x) . But when Melissa applied the distributive law and multiplied out 8x(3x^3 x^2 4x), she got 24x^4 8x^3 32x; thus, Andrews solution does not appear to check. Why is that? Please help Andrew to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, so state.
Answer:Since Andrew stared his factoring with 8x he should have reduced the quotent inside the parenthesis by 1. Also Melissa should have gotten 24x^4 - 8x^3 - 34x^2. The correct answer should have been 8(3x^3 - x^2 = 4x) this would have checked to the beginning expression.
Thank you in advance!
Click here to see answer by Edwin McCravy(20054)  |
Question 601695: Please help. I am confusing myself more every time I try to work this.
Factor the following expression completely:
12y5 34xy4 + 14x2y3
Also, if you could please tell me if I answered this right I would appreciate it.
Question: Andrew factored the expression 24x^3 8x^2 32x as 8x(3x^3 x^2 -4x) . But when Melissa applied the distributive law and multiplied out 8x(3x^3 x^2 4x), she got 24x^4 8x^3 32x; thus, Andrews solution does not appear to check. Why is that? Please help Andrew to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, so state.
Answer:Since Andrew stared his factoring with 8x he should have reduced the quotent inside the parenthesis by 1. Also Melissa should have gotten 24x^4 - 8x^3 - 34x^2. The correct answer should have been 8(3x^3 - x^2 = 4x) this would have checked to the beginning expression.
Thank you in advance!
Click here to see answer by stanbon(75887) |
Question 601713: Can someone please check my work? Thank you
Question: Multiply
x 2
by
-5x2 3x 4
Answer:
(x 2)(-5x^2 3x 4 )
= 5x^3 - 3x^2 - 4x + 10x^2 + 6x + 8
= 5x^3 - 3x^2 + 10x^2 - 4x + 6x + 8
= 5x^3 + 8x^2 + 2x + 8
Question: Subtract.
(4n6 7n5 + 5) (9n6 n5 + 8)
Answer:
4n^6 - 7n^5 + 5 - 9n^6 + n^5 - 8
= (4 -9)n^6 + (7 - 1)n^5 - 3
=(-5) n^6 + (-6)n^5 - 3
= -5n^6 - 6n^5 -3
Click here to see answer by Alan3354(69443) |
Question 601702: Can someone help me solve these and show all work. I am trying to learn algebra but not doing very good I don't think. I confuse myself more than anything. I can usually get the answers but showing how I got it is another story all together,
1. Solve x^2 = 3x + 5
2. V=3.5√h,for h
(Distance to horizon from a height)
Thank you all for your help.
Click here to see answer by Alan3354(69443) |
|
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33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105
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