1.

Solution of the D.E y 4y + 4y = ex when solved using method of undetermined coefficients is _____

A. y = (c<sub>1</sub> + c<sub>2</sub>)e<sup>2x</sup> + 2e<sup>x</sup> 1
B. y = (c<sub>1</sub> + c<sub>2</sub> x)e<sup>2x</sup> + 4e<sup>x</sup> 4
C. y = (c<sub>1</sub> + c<sub>2</sub> x)e<sup>2x</sup> + e<sup>x</sup>
D. y = (c<sub>1</sub> + c<sub>2</sub> x)e<sup>x</sup> + 4e<sup>x</sup>
Answer» D. y = (c<sub>1</sub> + c<sub>2</sub> x)e<sup>x</sup> + 4e<sup>x</sup>


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