SOLUTION: I'm a dad trying to help with homework question. Normally have no problem. Can't understand this one problem and what it is asking... "If k is a constant such that x-2 and x+2 are

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I'm a dad trying to help with homework question. Normally have no problem. Can't understand this one problem and what it is asking... "If k is a constant such that x-2 and x+2 are      Log On


   

Question 668125: I'm a dad trying to help with homework question. Normally have no problem. Can't understand this one problem and what it is asking...
"If k is a constant such that x-2 and x+2 are factors of the polynomial 100x2(squared) + k, what is the value of k?"
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
"If k is a constant such that x-2 and x+2 are factors of the polynomial 100x2(squared) + k, what is the value of k?"
:
I'm going to say k = -400
we have
100x^2 - 400
Factor out 100
100(x^2 - 4)
Which factors to
100(x-2)(x+2)