September 2018 1 20 Report

Rozwiąż:

a) x^{3}+5x^{2}-9x-45=0

b) (x^{2}-1)(x^{2}-2x)(x^{2}+2x+1)=0

c) -2x^{4}+4x^{3}+6x^{2}\leq0

d) x^{3}+2x^{2}-9x-18>0

e) 2(x+1)(x-2)^{3}(x+5)^{4}\geq0

Dla jakich wartości parametrów a i b wielomiany W(x)=(x^{2}-3)^{2} i V(x)=x^{4}+(a-2)x^{3}+bx^{2}+9 są równe?


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