2. Add 4y(3y²+5y-7) and 2(y³-4y²+5)
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Step-by-step explanation:
4y(3y²+5y-7)+2(y³-4y²+5)
=12y³+20y²-28y+2y³-8y²+10
=14y³+12y²-28y+10
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