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14 September, 22:21

Write as a polynomial: y^2 (y+5) (y-3)

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  1. 14 September, 23:54
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    You mean expand

    so first do the parnethesees bits becasue the rest can be done later

    (y+5) (y-3)

    foil aka distribute

    y^2+5y-3y-15

    y^2+2y-15

    now remember tha tis all multilied by y^2

    y^2 (y^2+2y-15)

    y^4+2y^3-15y^2
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