Engineering Board Exam Reviewer · Limits · easy

Evaluate: x 1x2+2x-3/x-1

1. 2
2. 4
3. -4
4. undefined

Answer

B. 4

Solution

Factor the numerator: x2+2x-3=(x-1)(x+3). So the limit becomes x 1(x+3)=4.

More Limits questions

1. Evaluate: x -2x2-4/x+2
2. Evaluate: x 4 sqrt(x)-2x-4
3. Evaluate: x 0 sqrt(x+9)-3x
4. Evaluate: x 2x3-8/x-2
5. Evaluate: x 3x2-2x-3/x2-9
6. Evaluate: x ∞3x2+5x-1/2x2-x+7
7. Evaluate: x ∞5x+2/x2-3

All Limits questions