Question 1

When adding $\frac{4x-3}{x}$ and $\frac{2x}{x+3}$,  what is the least common denominator (LCD)?

Accepted Answer

x(x+3)

Answer

2x+3

Answer

x

Answer

x+3

Question 2

Which of the following is a rational equation?

Accepted Answer

$\frac{3x+1}{x-1} = \frac{6}{5x}$

Answer

$\frac{3x+1}{2} = \frac{5}{6}$

Answer

$6x^{2}-3x+2 = 0$

Answer

$-2(4x+2.6) = \frac{1}{2}x$

Question 3

For which values of $x$ is the rational expression $\frac{(x-2)(x+3)}{(x-4)(x+4)}$ undefined?

Accepted Answer

$4, -4$

Answer

None

Answer

$2, -3, 4, -4$

Answer

$2, -3$

Question 4

What is the value of $x$ that satisfies $\frac{2}{x} = \frac{3}{6}$?

Accepted Answer

$4$

Answer

$2$

Answer

$3$

Answer

$1$

Question 5

Which of the following is NOT equivalent to $-\frac{x+1}{1-x}$?

Accepted Answer

$\frac{1+x}{1-x}$

Answer

$\frac{x+1}{x-1}$

Answer

$\frac{1+x}{x-1}$

Answer

$\frac{-x-1}{1-x}$

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