SOLUTION: I need help factoring this trinomial. Problem: j^4-16 Please provide me with the steps. Here's the answer I came out with so far (j^2-4)(j^2+4) Is it right? I think the sig

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need help factoring this trinomial. Problem: j^4-16 Please provide me with the steps. Here's the answer I came out with so far (j^2-4)(j^2+4) Is it right? I think the sig      Log On


   

Question 243335: I need help factoring this trinomial.
Problem: j^4-16
Please provide me with the steps.
Here's the answer I came out with so far
(j^2-4)(j^2+4)
Is it right?
I think the signs might be wrong.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
j^4-16 both j^4 & 16 are perfect squares & this is the difference of squares.
(j^2+4)(j^2-4) The second factor is once again a perfect square also.
(j^2+4)(j+2)(j-2) ans.