Ответы
Ответ дал:
0
ж) ![2 x^{2} -5x+3=2 x^{2} -2x-3x+3=(2 x^{2} -2x)+(-3x+3)= 2 x^{2} -5x+3=2 x^{2} -2x-3x+3=(2 x^{2} -2x)+(-3x+3)=](https://tex.z-dn.net/?f=2+x%5E%7B2%7D+-5x%2B3%3D2+x%5E%7B2%7D+-2x-3x%2B3%3D%282+x%5E%7B2%7D+-2x%29%2B%28-3x%2B3%29%3D)
![=2x(x-1)-3(x-1)=(x-1)(2x-3) =2x(x-1)-3(x-1)=(x-1)(2x-3)](https://tex.z-dn.net/?f=%3D2x%28x-1%29-3%28x-1%29%3D%28x-1%29%282x-3%29)
з)![5y^{2} +2y-3=5y^{2}+5y-3y-3=(5y^{2}+5y)+(-3y-3)= 5y^{2} +2y-3=5y^{2}+5y-3y-3=(5y^{2}+5y)+(-3y-3)=](https://tex.z-dn.net/?f=5y%5E%7B2%7D+%2B2y-3%3D5y%5E%7B2%7D%2B5y-3y-3%3D%285y%5E%7B2%7D%2B5y%29%2B%28-3y-3%29%3D++)
![=5y(y+1)-3(y+1)=(y+1)(5y-3) =5y(y+1)-3(y+1)=(y+1)(5y-3)](https://tex.z-dn.net/?f=%3D5y%28y%2B1%29-3%28y%2B1%29%3D%28y%2B1%29%285y-3%29)
и)![-2 x^{2} +5x+7=-2 x^{2} +7x-2x+7=(-2 x^{2} -2x)+(7x+7)= -2 x^{2} +5x+7=-2 x^{2} +7x-2x+7=(-2 x^{2} -2x)+(7x+7)=](https://tex.z-dn.net/?f=-2+x%5E%7B2%7D+%2B5x%2B7%3D-2+x%5E%7B2%7D+%2B7x-2x%2B7%3D%28-2+x%5E%7B2%7D+-2x%29%2B%287x%2B7%29%3D)
![=-2x(x+1)+7(x+1)=(x+1)(-2x+7)=(x+1)(7-2x) =-2x(x+1)+7(x+1)=(x+1)(-2x+7)=(x+1)(7-2x)](https://tex.z-dn.net/?f=%3D-2x%28x%2B1%29%2B7%28x%2B1%29%3D%28x%2B1%29%28-2x%2B7%29%3D%28x%2B1%29%287-2x%29)
з)
и)
Вас заинтересует
1 год назад
1 год назад
6 лет назад
8 лет назад
8 лет назад
9 лет назад
9 лет назад