Questions on Algebra: Exponents and operations on exponents answered by real tutors!

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Algebra: Exponents and operations on exponents

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Question 119847: subtract 3x/16 - x/16 is this x/8?
Click here to see answer by jim_thompson5910(13794)

Question 119833: solve please. x/3 - 1/4 = (3x-8)/12
Click here to see answer by jim_thompson5910(13794)

Question 119848: What values for x must be excluded in the following fraction?
(x+2)/(x^2-9x+14) im not sure what they want, please help
Click here to see answer by jim_thompson5910(13794)

Question 119859: x/2 - x/3 = 9 im thinking to hard again.
Click here to see answer by jim_thompson5910(13794)

Question 119886: 1+2/3 divided by 3+1/2 i need to simplify. please help me, thank you
Click here to see answer by josmiceli(3010)

Question 119861: simplify 1+2/3 divided by 3+1/2
Click here to see answer by HyperBrain(694)

Question 119861: simplify 1+2/3 divided by 3+1/2
Click here to see answer by infobuster(1)

Question 120156This question is from textbook Pre-Algebra for Christian Schools
: (-4)^-2This question is from textbook Pre-Algebra for Christian Schools

Click here to see answer by checkley71(8405)

Question 120450: Hi, I tried to solve for 5x^2=3x+2 and thought the answer is x=2/5 and x=-2.
Also, I tried to solve 3x^3 +2x^2=x and came up with x=0, 1/3, -1. I am not
sure of these answers. Can you please help me? Thank you!
Click here to see answer by jim_thompson5910(13794)

Question 120576: m^0 n^9
Click here to see answer by checkley71(8405)

Question 120511: divide 3x4+2 by x+1 (the x is to the fourth power) and check
Click here to see answer by nabla(412)

Question 120607:

Click here to see answer by Earlsdon(4900)

Question 121172: There are initially 3 E-coli bacteria present in a hamburger. If the doubling time for E-coli is 5 minutes, how many E-coli bacteria will be present after 20 minutes?
Click here to see answer by checkley71(8405)

Question 121376This question is from textbook pre-algebra

: i really need help on my math i have an F on my math so ill give my first answer!
8 to the power of 13 over 8 to the power of 10This question is from textbook pre-algebra

Click here to see answer by checkley71(8405)

Question 122260:
Click here to see answer by solver91311(5072)

Question 122262: (2x^3)^-5
(2x^-3)^5
Click here to see answer by MathLover1(1183)

Question 122384: Please help me solve x^2=2x^2
Thank you very much
I am in a Gateways high school math course no textbook
Click here to see answer by solver91311(5072)

Question 123302: (2to the power of three)to the power of two
Click here to see answer by solver91311(5072)

Question 123327: I need to wite a sentence explaining the following:
(-x)^2 is not equal to -x^2. I'm having a real porblem wth this! Thanks in advance for your help!
Denise
Click here to see answer by ptaylor(1578)

Question 123531: solve: 1/3^2-(-1/2^3)(1/3-(-1/2)
Click here to see answer by stanbon(26283)

Question 123605: What is the product of the cube of (-2/3)(negative two over three) and the square of (4/-5) (four over negative 5)
Thanks!
D.
Click here to see answer by edjones(3297)

Question 123696: Simplify please. Thanks.

y/3 + y/7 + y/5
Click here to see answer by checkley71(8405)

Question 123763: please help me simplify each expression
reduce all fractions.
(5x)^2(2x)^0
____________
25x^5
Click here to see answer by checkley71(8405)

Question 124362: Please help:
Type using only positive exponents:
36x^-4 y^2 z^0 / 5x^2 y^-3 z^-2
Thanks...
Click here to see answer by Edwin McCravy(2922)

Question 124305: Express using a positive exponent.
1/y^-7 This is supposed to look like a fraction with a negative exponent.
Click here to see answer by ankor@dixie-net.com(6693)

Question 124571: Please help solve the following:

(6^3)(6^-4)
My thoughts are:
1. (6*6*6)X (-6*-6*-6*-6) = 72 x 372 = 26784
2. = 6^-12
Click here to see answer by checkley71(8405)

Question 124864: 14x² - 4x
Click here to see answer by solver91311(5072)

Question 123693: Help please:
Divide--
p^2 - q^2/p+q divided by p-q/p+q
Click here to see answer by solver91311(5072)

Question 125121: (15.25) EXP -1.4
What do you do when the exponent is not an real number?
Click here to see answer by stanbon(26283)

Question 125386This question is from textbook Introductory Algebra
: I'm not sure if this is the right section for this question, but I'll give it a try. The problem reads: Find the reciprocal and express it in scientific notation. 6.25 x 10 to the -3 power.
Is the reciprocal just: 1 over 6.25 x 10 to the -3 power? I'm not sure how you express that in scientific notation.This question is from textbook Introductory Algebra

Click here to see answer by scott8148(3382)

Question 125719: How do you solve (a)3x-\2y=5 (b) m\2-n\4=2
1\3x+1\4y=3 3m\4-n\5=5
Click here to see answer by stanbon(26283)

Question 125899: Please show me how to solve: (3X^4Y^5)(3X^2Y) =
Click here to see answer by stanbon(26283)

Question 125915: How do you simplify (x-7)^2
Click here to see answer by jim_thompson5910(13794)

Question 126690: A cup of tea cools exponentially according to the function T(x)=60(0.79)(^x/3)+30,where T is the temperature in degrees celcius and x is time in minutes. What was the initial temperature of the tea? I think it is 90 degrees celcius. Can someone kindly confirm ???
Click here to see answer by stanbon(26283)

Question 126942This question is from textbook Thinking Mathematically
: a.) Graph f(x)=3^x
b.) Evaluate 2f(-0.125)This question is from textbook Thinking Mathematically

Click here to see answer by jim_thompson5910(13794)

Question 126943: Please help me solve this equation.
Write the exponential form in logarithmic form.
f(x)=3^x
Thanks!
Click here to see answer by jim_thompson5910(13794)

Question 127195:
^2
Click here to see answer by checkley71(8405)

Question 127203: ^ 2
Click here to see answer by checkley71(8405)

Question 127528: what is the square root of
a^2-10a+25
Click here to see answer by bucky(1732)

Question 127731This question is from textbook Experiencing Introductory & Intermediate Algebra
: Please help me solve this equation and simplify.
10x^3+35^2-5x Thank you!This question is from textbook Experiencing Introductory & Intermediate Algebra

Click here to see answer by edjones(3297)

Question 127954: Can someone please explain to me, how to solve this problem, Thanks!
27y^3 + 125 =
Click here to see answer by Ganesha(13)

Question 128012: AFTER BEING AWAY FROM SCHOOL FOR OVER 30 YEARS - I AM TRYING TO HELP A YOUNG WOMAN WITH HER HOMEWORK. (HER MOTHER PASSED AWAY RECENTLY). I AM LOOKING AT:
X = 4 TO THE THIRD TO THE 4TH. I'VE NEVER SEEN AN EXPONENT HAVE AN EXPONENT.PLEASE SHOW ME HOW TO WORK SUCH A PROBLEM STEP BY STEP. dO I ASSUME THERE ARE PARENTHESIS SOMEWHERE?
Click here to see answer by stanbon(26283)

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