SOLUTION: help would really be appreciated. let f(x)=2x^2+4x-30/(over)x-3. show that f has a removable discontinuity at x=3 and determine what value for f(3) would make f(x) continuous at x=

Algebra ->  Functions -> SOLUTION: help would really be appreciated. let f(x)=2x^2+4x-30/(over)x-3. show that f has a removable discontinuity at x=3 and determine what value for f(3) would make f(x) continuous at x=      Log On


   

Question 965833: help would really be appreciated. let f(x)=2x^2+4x-30/(over)x-3. show that f has a removable discontinuity at x=3 and determine what value for f(3) would make f(x) continuous at x=3. so f(3)=
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
2x%5E2%2B4x-30=2%28x%5E2%2B2x-15%29
2x%5E2%2B4x-30=2%28x%2B5%29%28x-3%29
So then,
%282x%5E2%2B4x-30%29%2F%28x-3%29=%282%28x%2B5%29%28x-3%29%29%2F%28x-3%29
%282x%5E2%2B4x-30%29%2F%28x-3%29=2%28x%2B5%29
.
.
.
f%283%29=2%283%2B5%29
f%283%29=16
.