Naloga
Dopolni naslednje račune.

(a+3)·(b+c+2)=ab+ac+2a+3b+3c+

(a–4)·(b+m–8)=ab+am –4b–4m+

(a–4+b)·(b+5)=ab+5a –20+b2+ =ab+5a+ +20+b2

  

Naloga

Pomnoži.

a) (a+b+1)·(y+2)

b) (x–1)·(y+z+2)

c) (a+b+c–5)·(2+x)

© E-um 2008
© E-um 2008
© E-um 2008