Question

1) 3 xy-2y 5x² 2) i 60 4 x³y - 2y² 3 xy² 3) 3 xy³ +12y 5.x² a ​

Answer 1

Ответ:

) 3x-3y+x²y-xy²=3(x-y)+xy(x-y)=(3+xy)(x-y)

2) x²y+xy²-2x-2y=xy(x+y)-2(x+y)=(x+y)(xy-2)

3) x³-xy²+3y²-3x²=x(x²-y²)+3(y²-x²)=(x-3)(x²-y²)

4) xy²-x+5-5y²=x(y²-1)-5(y²-1)=(x-5)(y²-1)

5)a³-8=(a-2)(a²+2a+4)

6) a³+27= (a+3)(a²-3a+9)

7) 8m⁴-m⁷=m⁴(1-8m=(1-2m)(1+2m+4m²)

8) m⁸+27m⁵=m⁵(1+3m³)=m⁵(1+m)(1-3m+9m²).