Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)
Question 125132: Hello If anyone can please try and solve this equation I don't even know where to start! Help! :( okay i realize that the LAST PART of this equation AFTER THE 1 written and shown to you incorrectly:  it is supposed to be (3 over 4 ) 3/4 =1 (minus) - 3x-2 (over) / x+1. I don't know how to write this equation correctly as text. I apologize. Thank you and have blessed day!!
Click here to see answer by ankor@dixie-net.com(22740)   |
Question 126340: I am stuck on this problem after I have tried to work it out several different ways, but am unable to get the same answer as the textbook. Your assistance would be greatly appreciated. Thank you.
The problem is as follows:
2+X/X^2+X-3/3X.
This is how I have gone about this.
2+X/X^2+X-3/3X
which gives me
6X+3X^2/3X^3+X^3-3X^2/3X^3
which gives me
6X+3X^2+X^3-3X^2/3X^3
which gives me
X^3+3X^2-3X^2+6X/3X^3
which gives me
X^3+6X/3X^3
And I simply cannot see how the textbook has come up with the answer of
X^2+6/3X^2
Please would you be able to show me with an explanation as to why each step is done. Thank you so very much.
Cheers D.
Click here to see answer by solver91311(24713)  |
Question 126340: I am stuck on this problem after I have tried to work it out several different ways, but am unable to get the same answer as the textbook. Your assistance would be greatly appreciated. Thank you.
The problem is as follows:
2+X/X^2+X-3/3X.
This is how I have gone about this.
2+X/X^2+X-3/3X
which gives me
6X+3X^2/3X^3+X^3-3X^2/3X^3
which gives me
6X+3X^2+X^3-3X^2/3X^3
which gives me
X^3+3X^2-3X^2+6X/3X^3
which gives me
X^3+6X/3X^3
And I simply cannot see how the textbook has come up with the answer of
X^2+6/3X^2
Please would you be able to show me with an explanation as to why each step is done. Thank you so very much.
Cheers D.
Click here to see answer by ilana(307) |
Question 126575: Hi! I am supposed to write the equation  with positive exponents. I am struggling. I thought the solution was 2x^5, but when I tested it, the equations did not match. Please help me. Much appreciated, Megan Behnke
Click here to see answer by stanbon(75887) |
Question 127063: Please help me solve this equation with only positive exponents:  . My Algebra 1 teacher isn't using the textbook so I don't know what to do. When I work the problem to get positive exponents, I get 4^0*5^3*2^3, and I get lost afterwards.
Click here to see answer by stanbon(75887) |
Question 127889: A company distributes its product by train and by truck. The cost of distributing by train can be modeled as -0.07x^2+34x-135, and the cost of distributing by trucks can be modeled as -0.02x^2+24x-180, where x is the number of tons of product distributed. Write a polynomial that represents the difference between the cost of distributing by train and the cost of distributing by trucks.
Click here to see answer by ankor@dixie-net.com(22740) |
Question 129643: Okay, I'm trying to help my 13-year-old with Algebra. Some of it I remember, but I can't recall what to do with fractional exponents. The problem is:
(81)^-3/4. I have tried everything that I can think of, but to no avail. I don't know what to do with the negative sign when dealing with a negative fractional exponent. I know what to do with it when it's just a negative exponent, but the negative fractional exponent is throwing me.
Thanks,
Downs in Georgia
Click here to see answer by ptaylor(2198)  |
Question 129507: I have tried everything on this problem that I know to do. It involves a fraction and positive and negative exponents. Assume all variables represent positive real numbers. Write your answers with positive exponents.
(x^2 y^-3 z) ^1/2
_________________
x^1/2 y z^-1/2
first I multiiplied everything on the top by the exponent outside the ()
x^2/1*1/2, y^-3*1/2, z^1/2 = x y^-3/2 z^1/2
__________________________ _______________
x^1/2 y z^-1/2 x^1/2 y z^-1/2 This is where I get stuck
Click here to see answer by scott8148(6628)  |
Question 130704: Write each expression so that it contains only positive exponents.
8/4^-2
I understand that the 4^-2 needs to go to the top with the 8 but im not sure whether I need to add the 8 and the 16 (4^2) together or not.
Please help. Thank you.
Click here to see answer by scott8148(6628) |
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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
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