Question

Which of the following is the simplified form of

Answer 1

\[\frac{ x ^{2}-16 }{ x-4 }\]

Answer 2

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

Answer 3

can you factorize \[x^{2}-16\]??????????????????

Answer 4

(x+4)(x-4)?

Answer 5

oh sorry \[\frac{ (x+4)(x-4) }{ x-4 }\]Thus which cancels which?

Answer 6

x-4 cancels

Answer 7

But \[x-4\neq0......x{\neq}4\]right?

Answer 8

im confused

Answer 9

If you have rational expression like a/b,
b must not be 0 so as the given expression above to be rational.
You this?

Answer 10

you know this?

Answer 11

yea

Answer 12

Therefore the expression\[\frac{ (x+4)(x-4) }{ x-4 }\] to be rational, what condition must be fulfilled?

Answer 13

Are you there?