Докажите тождество:
1) (y-3) (y+7)-13=(y+8)(y-4)-2
2) (z-11) (z+10)+10-=(z-5)(z+5)-80
3) a² + b ² = (a+b) ²-2ab
4) (a+b)²-2b(a+b)=a²-b²
1) (y-3) (y+7)-13=(y+8)(y-4)-2
2) (z-11) (z+10)+10-=(z-5)(z+5)-80
3) a² + b ² = (a+b) ²-2ab
4) (a+b)²-2b(a+b)=a²-b²
More Questions From This User See All