1)7m-n+49m²-n²=(7m-n)*(1+7m+n)2)4x²-4xy+y²-16x=?
3)xy⁴-2y⁴-xy+2y=y*(x-2)(y-1)(y²+y+1)
4)9-x²-2xy-y²=?
Решите уравнениe
1)5x³-5x=0
5x(x²-1)=0
x=-1 x=0 x=1
2)64x³+16x²+x=0
x(64x²+16x+1)=0
x=0 x=-1/8
3)x³-3x²-4x+12=0
x²(x-3)-4(x-3)=0
(x²-4)(x-3)=0
x=-2 x=2 x=3