Question

Write a quadratic equation having the given numbers as a solutions. -10 and -8

and solve w^4-14w^2-2=0

Answer 1

if -10 and -8 are solutions then that means

x = -10
and
x = -8

this means that the factors are

(x+10)
and
(x+8)

that means the polynomial must be

(x+10)(x+8) <--expand this to get your answer

Answer 2

how do i expand it ?

Answer 3

use FOIL. are you familiar with it?

Answer 4

no

Answer 5

really? you're in this lesson without the teacher teaching you FOIL? maybe in a different name...it's the one that looks like



remember it now