Oblicz wartość współczynnika m wielomianu
P(x)= 2x^3-5x^2+mx-2, wiedząc, że P(2)=6
P(x)= 2x³-5x²+mx-2
P(2)=2*2³-5*2²+m*2-2=6
2*8-5*4+2m-2=6
16-20+2m-2=6
2m-6=6
2m=12 /:2
m=6
P(x)= 2x^3-5x^2+mx-2 P(2)=6
P(2)=2*2³-5*2²+2m-2=2*8-5*4+2m-2=16-20+2m-2=-4+2m-2=2m-6
2m=6+6
2m=12
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P(x)= 2x³-5x²+mx-2
P(2)=2*2³-5*2²+m*2-2=6
2*8-5*4+2m-2=6
16-20+2m-2=6
2m-6=6
2m=12 /:2
m=6
P(x)= 2x^3-5x^2+mx-2 P(2)=6
P(2)=2*2³-5*2²+2m-2=2*8-5*4+2m-2=16-20+2m-2=-4+2m-2=2m-6
2m-6=6
2m=6+6
2m=12
m=6
licze na naj