Quadratic Expressions Worksheet - Mat 1101, Test 3 - 2009
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1
2Test 3
MAT 1101
Winter 2009
Name ________________________
Simplify all answers and show your work!
1) To add and subtract fractions, they must have a _________________________________________.
2) Why can we not simplify 2x + 3y and further? __________________________________________
_________________________________________________________________________________.
3) Exponents are a shortcut for repeated ______________________________________.
4) When we have a variable with an exponent raised to another exponent, what do we do with those
3
2
exponents? (Ex: (x
)
)_____________________________________________________________
2
2
5) Combine like terms: 2xy + 3x
y – 12x
y + 17xy – 12xy
3
2
3
2
2
2
6) Add: (4x
+ 5x
– 7) + (8x
– 11x
+ 9)
7) Subtract: (7x
– 2x – 8) – (3x
– x + 5)
Simplify the following:
3
2
6
4
2
−
x 4
y
x 3
y
4
2
3
−
−
8)
9)
10)
(
x 4
y
)
5
7
5
3
−
16
x
y
x 2
y
4
−
3
– 2
– 1
4
6
7
12
3
−
11)
27
12) 4
• 3
• 4
• 3
13)
x
x
x
•
•
Multiply the following:
2
2
4
14) 4x
(3x
y + 5xy
– 4xy)
15) (x – 4)(x + 7)
16) (3x – 5)(6x + 8)
2
2
17) (3x + 2)
18) (5x – 6)(x
– 2x + 3)
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