What are the solutions to the equation (x-1)(x+2)=-2?

Method used:-

Completing the square method.

Steps :-

Now, make the left hand side of the equation by adding the square of ½ to both sides of the equation.

Simplify the equation. You'll get a +ve & -ve value.

Simplify it further.

The solutions are :-

x = 0 & x = -1

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Hope it 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:

step-by-step explanation:

sry but any answer choices