Solve the given differential equation. (The form of yp is given.)D2y - y = 3 + x2 (Let yp = A + Bx + Cx2.)
A. y = c1ex + c2e-x + 5 - x2
B. y = c1ex + c2xex - 5 - x2
C. y = c1ex + c2e-x - 5 - x2
D. y = c1ex + c2e-x - 5 + x2
Answer: C
Mathematics
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A. 
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C. {- 4}
D. {4}
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