Solution of the D.E y + 3y + 2y = 12x2 when solved using the method of undetermined coefficients is ________

y = c1 ex + c2 e2x + 2 11x + x2

y = c1 e x + c2 e 2x + 18 + 21x + 3x2

y = c1 ex + c2 e 2x + 11 + 18x + 2x2

y = c1 e x + c2 e 2x + 21 18x + 6x2

Solution of the D.E y + 3y + 2y = 12x2 when solved using the method

1.	Solution of the D.E y + 3y + 2y = 12x2 when solved using the method of undetermined coefficients is ________
A.	y = c<sub>1</sub> e<sup>x</sup> + c<sub>2</sub> e<sup>2x</sup> + 2 11x + x<sup>2</sup>
B.	y = c<sub>1</sub> e<sup> x</sup> + c<sub>2</sub> e<sup> 2x</sup> + 18 + 21x + 3x<sup>2</sup>
C.	y = c<sub>1</sub> e<sup>x</sup> + c<sub>2</sub> e<sup> 2x</sup> + 11 + 18x + 2x<sup>2</sup>
D.	y = c<sub>1</sub> e<sup> x</sup> + c<sub>2</sub> e<sup> 2x</sup> + 21 18x + 6x<sup>2</sup>
Answer» E.