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Question

2x2e2xdx=e2x(ax2+bx+c)+d, then

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Solution

2x2e2xdx

=2(x212e2x+14(2e2xx+e2x))+C

=e2xx2+e2xx12e2x+C

2x2e2xdx=e2xx2e2xx12e2x+C

2x2e2xdx=e2x(x2+x12)+C

e2x(ax2+bx+c)+d=e2x(x2+x12)+C

a=1

b=1

c=12

d=C(constant)

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