Perform the addition or subtraction.(10x2 + 9) - (-x3 + 2x2 + 4)
A. 11x3 + 2x2 + 5
B. 11x3 + 11x2 - 4
C. x3 + 8x2 + 5
D. x3 + 12x2 + 13
Answer: C
Mathematics
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A. 
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× 1
A. 5 B. 9 C. 3 D. 10
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Find a formula for the nth term of the arithmetic sequence whose first term a and common difference d are given.a = -3; d = 
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B. an = 
n + 3
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D. an = 
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?
What will be an ideal response?
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