3x²+8x-3=0x²+8x/3-1=0x²+8x/3+16/9-16/9-1=0x²+8x/3+16/9=16/9+1(x+4/3)²=25/9x+4/3=±5/3x=-4/3±5/3x1=1/3 ,x2=-3祝你开心!希望能帮到你,如果不懂,请Hi我,祝学习进步!
3x^2+8x-3=0x^2+8/3*x-1=0(x+4/3)^2-16/9-1=0(x+4/3)^2=25/9x+4/3=±5/3x=1/3或-3
(3x-1)(x+3)=0