Solve the Inequality X + 9 ≥ 2
solve please

x -7

Step-by-step explanation:

First, I like to imagine the inequality sign as an equal sign when I'm working a problem out. This is optional and you'll change the sign back when you give the answer.

x + 9 = 2 works out the same as x + 9 2

Subtract 9 by both sides

x + 9 2

    -9    -9

So,

x -7

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: