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Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)
Question 170497: Choose values of x to show that 2x^2-32/x-4 does not simplify to 2x-8. Then, simplify it correctly.
I simplified it and got that the correct answer is 2x+8. I do not know how to choose values of x to show that 2x-8 is incorrect.
Thank you for any help you can provide.: Choose values of x to show that 2x^2-32/x-4 does not simplify to 2x-8. Then, simplify it correctly.
I simplified it and got that the correct answer is 2x+8. I do not know how to choose values of x to show that 2x-8 is incorrect.
Thank you for any help you can provide.
Click here to see answer by stanbon(19020)  |
Question 170391: Name the steps in simplifying fractions.
I have Step 1: factor numerator and denominator
I had Step 2: state restrictions on variable/look for opposites so that denominator does not equal zero.
My answer for step 2 is incorrect. Step 1 is correct: Name the steps in simplifying fractions.
I have Step 1: factor numerator and denominator
I had Step 2: state restrictions on variable/look for opposites so that denominator does not equal zero.
My answer for step 2 is incorrect. Step 1 is correct
Click here to see answer by Mathtut(571) |
Question 166997: Determine the root under the set of real numbers.
What is the square root of -16: Determine the root under the set of real numbers.
What is the square root of -16
Click here to see answer by checkley77(3654) |
Question 164194: Find the derivative of the inverse of f(x) by using 1/derivative of f(x).
1. F(x)=(x+3)^.5
This problem does not sound correct to me, but that is the problem, please help.
Thanks: Find the derivative of the inverse of f(x) by using 1/derivative of f(x).
1. F(x)=(x+3)^.5
This problem does not sound correct to me, but that is the problem, please help.
Thanks
Click here to see answer by algebrapro18(155) |
Question 164149: Divide by factoring numerators and then dividing out common factors.
(x^2-4x-25)/(x+4): Divide by factoring numerators and then dividing out common factors.
(x^2-4x-25)/(x+4)
Click here to see answer by Edwin McCravy(2087) |
Question 164148: Divide by factoring numerators and then dividing out common factors.
(7y^3-51y^2-2y+72)/(7y-9): Divide by factoring numerators and then dividing out common factors.
(7y^3-51y^2-2y+72)/(7y-9)
Click here to see answer by Edwin McCravy(2087) |
Question 161082: Hi I need help with this:
can the opposite of (-a) be a negative number? why?: Hi I need help with this:
can the opposite of (-a) be a negative number? why?
Click here to see answer by vleith(1174) |
Question 160045This question is from textbook 
: Estimate the length of a side, s, of a cube with volume, V of 9cm^3 (where V=s^3 ).This question is from textbook
: Estimate the length of a side, s, of a cube with volume, V of 9cm^3 (where V=s^3 ).
Click here to see answer by midwood_trail(260) |
Question 159976: What should I do with the negative sign when simplifying this exponent?
9 ^-2/3
Does the fact that 1/9 has parenthesis around it change the solve?
(1/9)^3/2: What should I do with the negative sign when simplifying this exponent?
9 ^-2/3
Does the fact that 1/9 has parenthesis around it change the solve?
(1/9)^3/2
Click here to see answer by vleith(1174) |
Question 159463: what is the difference between -2 to the power of 2
and (-2) to the power of 2: what is the difference between -2 to the power of 2
and (-2) to the power of 2
Click here to see answer by checkley77(3654) |
Question 159507This question is from textbook
: Evaluate and write the result using scientific notation:
(4.7 x 10^-7)(1.8 x 10^9)This question is from textbook
: Evaluate and write the result using scientific notation:
(4.7 x 10^-7)(1.8 x 10^9)
Click here to see answer by Alan3354(1449) |
Question 158892: sir i have a problem on solving this equation.
i am trying to solve x and to simplify it.
question: logx 8=-3?
i convert it to exponential form x^-3=8
this are the formulas I've tried to solve it but I'm not sure if it is correct.
a). (x^-3)^3=(8)^3
x=8^3
x=512:answer
b). i change the negative exponent to positive and transpose it to 8
x=8^3
x=512:answer
c). i get the reciprocal of the exponent and change it to 1/3
it became x^1/3=8
then i do: (cube root of x)^3 = (8)^3
i cancel out cube root of x and it became
x=8^3
x=512:answer
please help me to figure out the answer of this problem because I'm about to go crazy.
for my last question..
is this formula i have given is correct??
i mean is there any possible way to solve it??,,
thank you sir in advance..: sir i have a problem on solving this equation.
i am trying to solve x and to simplify it.
question: logx 8=-3?
i convert it to exponential form x^-3=8
this are the formulas I've tried to solve it but I'm not sure if it is correct.
a). (x^-3)^3=(8)^3
x=8^3
x=512:answer
b). i change the negative exponent to positive and transpose it to 8
x=8^3
x=512:answer
c). i get the reciprocal of the exponent and change it to 1/3
it became x^1/3=8
then i do: (cube root of x)^3 = (8)^3
i cancel out cube root of x and it became
x=8^3
x=512:answer
please help me to figure out the answer of this problem because I'm about to go crazy.
for my last question..
is this formula i have given is correct??
i mean is there any possible way to solve it??,,
thank you sir in advance..
Click here to see answer by scott8148(2761) |
Question 158892: sir i have a problem on solving this equation.
i am trying to solve x and to simplify it.
question: logx 8=-3?
i convert it to exponential form x^-3=8
this are the formulas I've tried to solve it but I'm not sure if it is correct.
a). (x^-3)^3=(8)^3
x=8^3
x=512:answer
b). i change the negative exponent to positive and transpose it to 8
x=8^3
x=512:answer
c). i get the reciprocal of the exponent and change it to 1/3
it became x^1/3=8
then i do: (cube root of x)^3 = (8)^3
i cancel out cube root of x and it became
x=8^3
x=512:answer
please help me to figure out the answer of this problem because I'm about to go crazy.
for my last question..
is this formula i have given is correct??
i mean is there any possible way to solve it??,,
thank you sir in advance..: sir i have a problem on solving this equation.
i am trying to solve x and to simplify it.
question: logx 8=-3?
i convert it to exponential form x^-3=8
this are the formulas I've tried to solve it but I'm not sure if it is correct.
a). (x^-3)^3=(8)^3
x=8^3
x=512:answer
b). i change the negative exponent to positive and transpose it to 8
x=8^3
x=512:answer
c). i get the reciprocal of the exponent and change it to 1/3
it became x^1/3=8
then i do: (cube root of x)^3 = (8)^3
i cancel out cube root of x and it became
x=8^3
x=512:answer
please help me to figure out the answer of this problem because I'm about to go crazy.
for my last question..
is this formula i have given is correct??
i mean is there any possible way to solve it??,,
thank you sir in advance..
Click here to see answer by stanbon(19020) |
Question 158856: what is the value of x in this equation
2 raise to the -5 = (1 + 0.23x)raise to -3: what is the value of x in this equation
2 raise to the -5 = (1 + 0.23x)raise to -3
Click here to see answer by ranjithraghuram(4) |
Question 158693: how do i solve this? (-8000)^4/3.This is what i had tried but am now stuck. (#=square root) sorry i dont know the proper abv for it. 3^#8000^4 i know the answer is 160 000 but i dont understand how they got to that answer i tryed everything i can think of. i assume that bc i changed it to that format the negative just goes away. your help will be greatly apreciated (sorry about the spelling doing an all nighter.: how do i solve this? (-8000)^4/3.This is what i had tried but am now stuck. (#=square root) sorry i dont know the proper abv for it. 3^#8000^4 i know the answer is 160 000 but i dont understand how they got to that answer i tryed everything i can think of. i assume that bc i changed it to that format the negative just goes away. your help will be greatly apreciated (sorry about the spelling doing an all nighter.
Click here to see answer by scott8148(2761) |
Question 157500: Please help my daughter solve this problem:
(5x^-1/9y^-6)^-5 (5x to the negative 1divided by 9y to the negative 6 all raised to the negative 5)
Your help will be most greatly appreciated. Thank you and have a good day!: Please help my daughter solve this problem:
(5x^-1/9y^-6)^-5 (5x to the negative 1divided by 9y to the negative 6 all raised to the negative 5)
Your help will be most greatly appreciated. Thank you and have a good day!
Click here to see answer by checkley77(3654) |
Question 156712: I can't remember how to work a fraction using numbers and letters example
9x over 7 divided by ten over 3x: I can't remember how to work a fraction using numbers and letters example
9x over 7 divided by ten over 3x
Click here to see answer by josmiceli(2035) |
Question 156213: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?
Click here to see answer by Earlsdon(3748) |
Question 156213: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?
Click here to see answer by checkley77(3654) |
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