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Adding and Subtracting Polynomials
Grade Level
PSAT Prep
060 Adding and Subtracting Polynomials
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🔴 Hard
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Let f(x) = -x
4
+ 5x
3
- 7x
2
+ 1, g(x) = x
4
+ 5x
2
+ 3x + 2, and h(x) = -7x
3
+ 5. Which expression equals f(x) + g(x) - h(x)?
A
x
4
+ 12x
3
- 2x
2
+ 3x - 2
B
-x
4
+ 12x
3
- 2x
2
+ 3x - 2
C
12x
3
- 2x
2
+ 3x - 2
D
-2x
3
- 2x
2
+ 3x + 8
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