How to find excluded values

Practice Questions

GRE Quantitative Reasoning › How to find excluded values

Questions

5

1

If $f(x)=\frac{(x^2-25)}{(3x^2+4x-7)}$ then which values of cannot exist?

2

Which of the following provides the complete solution set for ?

3

Which of the following are answers to the equation below?

$\frac{x^2-4}{x^2+5x+6}=0$

I. -3

II. -2

III. 2

4

Find the excluded values of the following algebraic fraction

$\frac{2x^2-5x-12}{x^2-11x+28}$

5

If $f(x)=\sqrt{x^2-16}$ then which cannot be an value?

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