7-y3+ y+ 9y2+6+y2+5y-19y+3y3-2y2+ 15
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Step-by-step explanation:
-y3+y2 +y+5y-19y +3y3-2y2+9y2 +15+7+6
-y - 13y +3y3+7y2 + 28
-y-13y +3y3+7y2 +28
-14y+3y3+7y2+28
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