October 2018 1 110 Report
Rozwiąż równanie.Tak jak to x^5-2x^4-15x^3=0 x^3(x^2-2x-15)=0 x=0 lub x^2-2x-15=0 delta=4+60=64=8^2 x1=2-8/2=-3,x2=2+8/2=5 ma trzy rowiazania 0,-3 i 5 a)x^3-7x^2+12x=0 b)-2x^4+9x^3+5x^2=0 c)3x^3+4x^2+x=0 d)4x^5-3x^4+2x^3=0
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