Rozwiąż równanie 2x³+8x²-3x-12=0
2x³+8x²-3x-12=0
2x²(x+4)-3(x+4)=0
2x²-3=0 ∨ x+4=0
2x²=3 x=-4
x²=3/2
x= ± √(3/2)
odp:
x=-√(3/2) ∨ x=√(3/2) ∨ x=-4
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2x³+8x²-3x-12=0
2x²(x+4)-3(x+4)=0
2x²-3=0 ∨ x+4=0
2x²=3 x=-4
x²=3/2
x= ± √(3/2)
odp:
x=-√(3/2) ∨ x=√(3/2) ∨ x=-4