Question

Riley makes a mistake in step 2 while doing her homework. What is the mistake?

Answer 1

We have been given work of Riley. By looking at his work carefully, we have to identify the error. So let's start from beginning.

$\frac{x}{x^2-5x+6}+ \frac{3}{x+3}$

First line is just the question so there will be no error.

After that we try to factor denominators

STEP1: $\frac{x}{(x-2)(x-3)}+ \frac{3}{x+3}$

Factors are correct so no error in step1.

In step2, we have to find the common denominator which will be (x-2)(x-3)(x+3)

so that means she needs to multiply and divide 2nd term by (x-2)(x-3) while she multiplied by only (x-2). Which means she used wrong common denominator.

Hence final answer will be "B. She used the wrong common denominator."

Answer 2

Answer:

B

Step-by-step explanation:

Just did it