SOLUTION: Please help, can't find a good place to explain the process involved with solving. Solve (x + 2)(x-2)(x+1)=0 a)the solution set is b)solution is all real numbers c)there is

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help, can't find a good place to explain the process involved with solving. Solve (x + 2)(x-2)(x+1)=0 a)the solution set is b)solution is all real numbers c)there is       Log On


   

Question 242745: Please help, can't find a good place to explain the process involved with solving.
Solve
(x + 2)(x-2)(x+1)=0
a)the solution set is
b)solution is all real numbers
c)there is no solution
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


All you need at this point is the Zero Product Rule:

If the product of two real numbers is zero, then at least one of the numbers in the product, i.e. one of the factors, must be zero.

Which is to say:



Then you can solve the three linear equations that follow logically to find the three elements of the solution set.

John