Use the distributive property to write an expression equivalent to 5x (3+4)

First, distribute (multiply) 5x to 3.  You get --> 15x.

Next, distribute 5x to 4.  You get --> 20x.

Now, combine the two terms with addition.  15x+20x=35x.

35x is the answer.

Hope this helps!

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:

hope this .

r3t40