Równania wielomianowe
a) 2x⁴-5x³-8x²+20=0
b) 2x³-2= 0
a) 4x2-5x3-8x2=-20-4x2-5x3=-20-4x2-5x2-5x=-20-9x2-5x=-20-x(9x+5)=-20x(-9x-5)=-20x=-20/(-9x-5)
b)
2x3=-2x3=-1x=-1
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a) 4x2-5x3-8x2=-20
-4x2-5x3=-20
-4x2-5x2-5x=-20
-9x2-5x=-20
-x(9x+5)=-20
x(-9x-5)=-20
x=-20/(-9x-5)
b)
2x3=-2
x3=-1
x=-1