For which rational expression is - 2 an excluded value of x?

a) x-3/x^2-4

b) x-3/x^2+4

c) x^2-4/x-3

d) x^2+4/x-3

Question

Mathematics

Freddie

17 December, 23:44

For which rational expression is - 2 an excluded value of x?

a) x-3/x^2-4

b) x-3/x^2+4

c) x^2-4/x-3

d) x^2+4/x-3

+4

Answers (1)

Know the Answer?

Ruby Stein · Answer 1

Look at the denomenator and see which ones become 0 when - 2 is subed for x

cause you can't divide by 0

A. 4-4=0, this has - 2 excluded

B. 4+4=8, this is fine, - 2 is not excluded

C. - 2-3=-5, this is find, - 2 is not excluded

D. same as above

answer is A

For which rational expression is - 2 an excluded value of x?a) x-3/x^2-4b) x-3/x^2+4c) x^2-4/x-3d) x^2+4/x-3

For which rational expression is - 2 an excluded value of x?

a) x-3/x^2-4

b) x-3/x^2+4

c) x^2-4/x-3

d) x^2+4/x-3