Use the method of undetermined coefficients to solve the differential equation.y'' + 4y' + 4y = x2 - 3x
A. y = C1e-2x + C2e2x + 
x2 - 
x + 
B. y = (C1 + C2x)e-2x + 
x2 - 
x + 
C. y = (C1 + C2x)e-2x + 
x2 + 
x - 
D. y = C1e-2x + C2e2x + 
x2 - 
x - 
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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A. 
B. - 
C. -1
D. - 
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< 8
A. 
? (7, ?)
B. (-?, -7) ? 
C. 
D. (-?, -7) ? (7, ?)
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A. S 50° W B. N 130° W C. S 50° E D. N 154° E
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