Объяснение:1) (6a²+3a-3)-(7a²-5a)=6a²+3a²-3-7a²+5a= -a²+8a-32) a) 2ay-7ay²= ay(2-7y)б)8b⁵+2b³=2b³(4b²+1)3) a)(c+2)(c-3)= c²-3c+2c-6 = c²-c+6б)(2a-1)(3a+4)=6a²+8a-3a-4=6a²+5a-44) a) a(a+3)-2(a+3)=(a-2)(a+3)
б) ax-ay+5x-5y= a(x-y)+5(x-y)= (a+5)(x-y)
5) -0,2x(4x²+6)(5-4x²)= (-0,8x³-1,2x)(5-4x²)=-4x³+3,2x⁵-6x+4,8x³=-0,8x³+3,2x⁵-6x
6) a) x²-xy-4x+4y=x(x-y)-4(x-y)=(x-4)(x-y)
б) ab-ac-bx+cx+c-b=(a-x-1)(b-c)
Объяснение:
1) (6a²+3a-3)-(7a²-5a)=6a²+3a²-3-7a²+5a= -a²+8a-3
2) a) 2ay-7ay²= ay(2-7y)
б)8b⁵+2b³=2b³(4b²+1)
3) a)(c+2)(c-3)= c²-3c+2c-6 = c²-c+6
б)(2a-1)(3a+4)=6a²+8a-3a-4=6a²+5a-4
4) a) a(a+3)-2(a+3)=(a-2)(a+3)
б) ax-ay+5x-5y= a(x-y)+5(x-y)= (a+5)(x-y)
5) -0,2x(4x²+6)(5-4x²)= (-0,8x³-1,2x)(5-4x²)=-4x³+3,2x⁵-6x+4,8x³=-0,8x³+3,2x⁵-6x
6) a) x²-xy-4x+4y=x(x-y)-4(x-y)=(x-4)(x-y)
б) ab-ac-bx+cx+c-b=(a-x-1)(b-c)