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PARCC Algebra Practice Test 2

1. Simplify the expression (4x + 22x) / (2x)

1. D: You can solve this problem either (1) by simplifying the numerator and denominator separately and then simplifying the result or (2) by using the distributive property. For this problem, we will use the first method.

First rewrite 4x as an exponent of 2 using the property, (bx )y=bxy.

4x=(22 )x=22x

Then use this to simplify the numerator with the property, bx x y = bx+y.

Finally, simplify the result using bx / by = bx-y

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