Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)
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.
Click here to see answer by scott8148(6628)   |
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..
Click here to see answer by stanbon(75887) |
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..
Click here to see answer by scott8148(6628) |
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
Click here to see answer by Mathtut(3670) |
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.
Click here to see answer by stanbon(75887) |
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