(X+3)²=X(X+3)
(X+3)²-X(X+3)=0
(x+3)(x+3-x)=0
3(x+3)=0
x+3=0
x= -3(期看能帮到你,费事点击 “好评”,谢谢你^_^)
0
(X+3)²=X(X+3)
(X+3)²-X(X+3)=0
(x+3)(x+3-x)=0
3(x+3)=0
x+3=0
x= -3(期看能帮到你,费事点击 “好评”,谢谢你^_^)