Simplify (3y2+5y-4) - (8y-y2-4)

Dear Student,

3y2+5y-4-8y-y2-4=3y2+5y-4-8y+y2+4                                              =3y2+y2+5y-8y-4+4                                              =4y2-3y3y2+5y-4-8y-y2-4=4y2-3y

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