РАЗЛОЖИТЕ НА МНОЖИТЕЛИ 7 КЛАСС
1) (b-3c)(b+2c)+5b(b+2c)
2) 8b²(b-c)+(7b²-bc)(c-b)
3) 11a²(3a-b)-(5b-4a²)(b-3a)²
1) (b-3c)(b+2c)+5b(b+2c)
2) 8b²(b-c)+(7b²-bc)(c-b)
3) 11a²(3a-b)-(5b-4a²)(b-3a)²
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Answers & Comments
2.(b-c)(8b^2-7b^2+bc)=b(1-c)(8b-7b+c)
3.(3a-b)((11a^2+((5b-4a^2)(3a-b))