SOLUTION: Factor polynomial completely x^2-17x-84

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor polynomial completely x^2-17x-84      Log On


   



Question 442509: Factor polynomial completely
x^2-17x-84

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-17x-84
---
Use Inverse FOIL:
x^2-21x+4x-84
---
x(x-21)+4(x-21)
---
(x-21)(x+4)
================
Cheers,
Stan H.
================