5/7-(-1/7)=please help and explain so i can get it

first,open the brackets

second,you can see that when negative meet negative,it will be positive like this 5/7+1/7

(i hope you will understand cuz that is the formula of math)

so it will be like this

=5/7-(-1/7)

=5/7+1/7

=6/7

do you actually understand?

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

29 mil

step-by-step explanation: