Solve each equation for x.
a. x−10=0
b. x/2+20=0
c. demanding dwight insists that you give him two solutions to the following equation:
(x−10)(x/2+20)=0
can you provide him with two solutions?

a) x = 10

b) x = -40

c) x = 10, -40

Step-by-step explanation:

a)

Taking 10 to the right hand side 10 becomes positive

So x = 10

b)

Taking 20 to the right hand side 20 becomes negative

Multiplying both sides by 2

So, x = -40

c)

Hence, x = 10, -40

So, two solutions can be provided

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:

you'll just earn points here

step-by-step explanation: