The Purplemath Forums

Hi,

I got this to find the answer:

(-8) with a 4/3 exponent

The answer in the book says 16, but i dont understand what to do to and how to achieve 16 as a result. Can someone help me and explain how you get to 16.

I got this to find the answer: (-8) with a 4/3 exponent The answer in the book says 16, but i dont understand what to do to and how to achieve 16 as a result. Can someone help me and explain how you get to 16. Are you having trouble with the negative number , with exponents in general , or with fra...

Ok, i got this equation: z(z-17)(Z+2)=0 That the manual gives this as an answer: -2, 0, 17. MY problem, is how do you achieve this. Where do I start. What is the chain of operations. So far I have tried doing this: z(z-17)(Z+2)=0 z(z-17)/(Z+2)=0/(z+2) or z(z-17)(Z+2)=0 Z^2-17z(Z+2)=0 Z^3+2z^2-17z-34...