Answered

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

StartFraction x Over x squared minus 5 x + 6 EndFraction + StartFraction x Over x + 3 EndFraction

Step 1: StartFraction x Over (x minus 2)(x minus 3) EndFraction + StartFraction 3 Over x + 3 EndFraction

Step 2: StartFraction x Over (x minus 2) (x + 3) EndFraction + 3 (x minus 2) Over (x minus 2) (x + 3) EndFraction

Step 3: StartFraction x + 3 x minus 6 Over (x minus 2) (x + 3) EndFraction

Step 4: StartFraction 4 x minus 6 Over (x minus 2) (x + 3) EndFraction

She added the two fractions incorrectly.
She used the wrong common denominator.
She did not distribute the negative correctly.
She did not multiply the first fraction by a factor.

Sagot :

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