01_3069_Key

# 01_3069_Key - 2 y in the numerator 3 Factor the polynomial...

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MAC 1147 (3069) - Quiz #1 Name: Key For full credit, you must show all work and circle your ﬁnal answer. 1 Perform the operation below. Leave fractional answers in simplest form . (1 point) 4 5 - 1 3 + 2 15 4 5 - 1 3 + 2 15 = 12 15 - 5 15 + 2 15 = 12 - 5 + 2 15 = 9 15 = 3 5 . 2 Simplify the radical expression below. (2 points) r 18 y 3 z 2 r 18 y 3 z 2 = 18 · p y 3 z 2 = 3 2 · y y | z | = 3 y 2 y | z | . Using 3 | y | instead of 3 y is acceptable, but not necessary. If y < 0, then the expression is undeﬁned anyway because of the
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Unformatted text preview: 2 y in the numerator. 3 Factor the polynomial into the product of two binomials. Hint: Factor by grouping. (2 points) x 3-x 2 + 4 x-4 x 3-x 2 + 4 x-4 = ( x 3-x 2 ) + (4 x-4) = x 2 ( x-1) + 4( x-1) = ( x 2 + 4)( x-1) . University of Florida Honor Code: On my honor, I have neither given nor received unauthorized aid in doing this assignment. Signature...
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