Ответ:
Объяснение:
(3x+2y)(4x-y)+2y²=12x²-3xy+8xy-2y²+2y²=12x²+5xy
(3p-1)(2p+5)-6p(p-2)=6p²+15p-2p-5-6p²+12p=25p-5
(7m+3)(2m-1)-2m(7m-1)=14m²-7m+6m-3-14m²+2m=m-3
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Ответ:
Объяснение:
(3x+2y)(4x-y)+2y²=12x²-3xy+8xy-2y²+2y²=12x²+5xy
(3p-1)(2p+5)-6p(p-2)=6p²+15p-2p-5-6p²+12p=25p-5
(7m+3)(2m-1)-2m(7m-1)=14m²-7m+6m-3-14m²+2m=m-3