Упростите выражения:1)(2m+3)(4m²-6m+9):2)(m+2a)(m²-2am+4a²):3) (16 y²+yz²+z четвёртай степени)(4y-z²).
1) (2m+3)(4m²-6m+9)=8m³-12m²+18m+12m²-18m+27=8m³+27
2) (m+2a)(m²-2am+4a²)=m³-2am²+4a²m+2am²-4a²m+8a³=8a³+m³
3) (16 y²+yz²+)(4y-z²)=64y³-16y²z²+4y²z²-y+4y-=64y³-12y²z²+3yz-
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Answers & Comments
1) (2m+3)(4m²-6m+9)=8m³-12m²+18m+12m²-18m+27=8m³+27
2) (m+2a)(m²-2am+4a²)=m³-2am²+4a²m+2am²-4a²m+8a³=8a³+m³
3) (16 y²+yz²+)(4y-z²)=64y³-16y²z²+4y²z²-y+4y-=64y³-12y²z²+3yz-