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a
ce-x+23e2x
b
(1+x)e-x+23e2x+c
c
ce-x+23e2x+c
d
e-x+23e2x+c
answer is A.
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Detailed Solution
It can be also solved by comparing with the linear equation dydx+Py=Q The integrating factor, I.F=e∫1.dx=ex Therefore, y I.F =∫2e2x .I.F +Cy⋅ex=2∫e3x+C=23e3x+C⇒y=2e2x3+ce−x