Odpowiedzi

2010-03-24T19:18:50+01:00
(4k-m)(x-6x2+x3)=4kx-24kx2+4kx3-mx+6mx2-mx3
(-3p-2q)(7p+6q)=-21p2-18pq-14pq-12q2=-21p2-32pq-12q2
(5x2+3)(2x2-x+4)=10x4-5x3+20x2+6x2-3x+12=10x4-5x3+26x2-3x+12
(-0,3+x)(x+0,3)=(x-0,3)(x+0,3)= x2-0,09
(k2+k+1)(k2-k+1)=k4-k3+k2+k3-k2+k+k2-k+1=k4+k2+1
(1+2x+x2)(1-2x+x2)=1-2x+x2+2x-4x2+2x3+x2-2x3+x4=1+x4-2x2