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JulijaS [17]
3 years ago
12

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

Mathematics
2 answers:
gtnhenbr [62]3 years ago
8 0

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.

<u>Hence final answer will be "B. She used the wrong common denominator."</u>

Paul [167]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Just did it

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