• anonymous
$y_P(x)=Ax^2+Bx+C$ $y'_P=2Ax+B$ $y''_P=2A$ $ay''+by'+cy=Gx$ $2A+(2Ax+B)-2(Ax^2+Bx+C)=x^2$ I understand all of the above except the $...=x^2$ part. Why is G(x)=x^2?
Mathematics

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