Wykonaj mnożenie
a)
3a(a^2-a+1)=
b)
(2a+4)(3b+5)=
c)
(y+3)(y-7)
3a(a²-a+1)=3a³-3a²+3a
(2a+4)(3b+5)=6ab+10a+12b+20
(y+3)(y-7)=y²-7y+3y-21=y²-4y-21
A. 3a(a^2-a-a+1)=3a^{3}2-3a^+3a
B. (2a+4)(3b+5)=5ab+10a+12b+20
C. (y+3)(y-7)=y^-7y+3y-21=y^-4y-21
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a)
3a(a²-a+1)=3a³-3a²+3a
b)
(2a+4)(3b+5)=6ab+10a+12b+20
c)
(y+3)(y-7)=y²-7y+3y-21=y²-4y-21
A. 3a(a^2-a-a+1)=3a^{3}2-3a^+3a
B. (2a+4)(3b+5)=5ab+10a+12b+20
C. (y+3)(y-7)=y^-7y+3y-21=y^-4y-21