rozwiąż równanie: x³+3x²-4=0
x³+3x²-4=0
x³-x²+4x²-4=0
x²(x-1)+4(x²-1)=0
x²(x-1)+4(x-1)(x+1)=0
(x-1)(x²+4x+4)=0
(x-1)(X+2)²=0
X=1 V X=-2
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x³+3x²-4=0
x³-x²+4x²-4=0
x²(x-1)+4(x²-1)=0
x²(x-1)+4(x-1)(x+1)=0
(x-1)(x²+4x+4)=0
(x-1)(X+2)²=0
X=1 V X=-2