Zadanie 26.
[tex]W(x)=4x^4-16x^3+24x^2+2x-7\\\\Q(x)=2x-3\\\\R(x)=x^2-x\\\\W(x)-\left(Q(x)\right)^2*R(x)=4x^4-16x^3+24x^2+2x-7-(2x-3)^2*(x^2-x)=\\\\=4x^4-16x^3+24x^2+2x-7-(4x^2-12x+9)*(x^2-x)=\\\\=4x^4-16x^3+24x^2+2x-7-(4x^4-12x^3+9x^2-4x^3+12x^2-9x)=\\\\=4x^4-16x^3+24x^2+2x-7-4x^4+12x^3-9x^2+4x^3-12x^2+9x=\\\\=3x^2+11x-7[/tex]
Zadanie 27.
[tex]W(x)=2x^3-6x^2+mx-1\\\\Q(x)=x-2[/tex]
Reszta z dzielenia wielomianu W(x) przez dwumian x-p wynosi W(p).
W tym przypadku
[tex]x-p=x-2\\\\p=2[/tex]
Policzmy W(p).
[tex]W(p)=W(2)=2*2^3-6*2^2+m*2-1=16-24+2m-1=2m-9[/tex]
Reszta ma wynosić 5, więc
[tex]2m-9=5\\\\2m=14\ |:2\\\\m=7[/tex]
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Zadanie 26.
[tex]W(x)=4x^4-16x^3+24x^2+2x-7\\\\Q(x)=2x-3\\\\R(x)=x^2-x\\\\W(x)-\left(Q(x)\right)^2*R(x)=4x^4-16x^3+24x^2+2x-7-(2x-3)^2*(x^2-x)=\\\\=4x^4-16x^3+24x^2+2x-7-(4x^2-12x+9)*(x^2-x)=\\\\=4x^4-16x^3+24x^2+2x-7-(4x^4-12x^3+9x^2-4x^3+12x^2-9x)=\\\\=4x^4-16x^3+24x^2+2x-7-4x^4+12x^3-9x^2+4x^3-12x^2+9x=\\\\=3x^2+11x-7[/tex]
Zadanie 27.
[tex]W(x)=2x^3-6x^2+mx-1\\\\Q(x)=x-2[/tex]
Reszta z dzielenia wielomianu W(x) przez dwumian x-p wynosi W(p).
W tym przypadku
[tex]x-p=x-2\\\\p=2[/tex]
Policzmy W(p).
[tex]W(p)=W(2)=2*2^3-6*2^2+m*2-1=16-24+2m-1=2m-9[/tex]
Reszta ma wynosić 5, więc
[tex]2m-9=5\\\\2m=14\ |:2\\\\m=7[/tex]