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Raf: u(x)+w(x)=[(a2−5)x4+x3−2x]+(x4−ax3+2)=(a2−5+1)x4+(1−a)x3−2x+2=(a2−4)x4+(1−a)x3−2x+2
3 mar 19:53
Raf: (a2−5)x4+x4
3 mar 19:59
Raf: (x2−5)x4+1*x4
3 mar 20:00
Raf: x4(a2−5+1)
3 mar 20:02
Raf: x(x+a)2=x(x2+2xa+a2)=...
3 mar 20:53
Kasia: x3 + 2 x2a + a2x
3 mar 20:58
Raf:
u(x)=x3+2ax2+a2x+b
w(x)=x3−6x2+9x+0
3 mar 21:08