Question

Which of the following is the simplified form of x^2-16 divided by x-4 :
x + 4, with the restriction x ≠ –4
x – 4, with the restriction x ≠ –4
x + 4, with the restriction x ≠ 4
x – 4, with the restriction x ≠ 4

I know its x+4 but what would be the restrcition?

Answer 1

(x-4)(x+4)
---------- = x+4
x-4

Answer 2

x not can being 4 because than the denominator is zero when the fraction will be undefined

Answer 3

so would the answer be x=/ 4??