←Vrati se na zadatke3. ZadatakZapiši izraz (x+1)(x+6)+4(x+1)(x+6)+4(x+1)(x+6)+4 u obliku umnoška.RješenjeVrijedi (x+1)(x+6)+4=x2+x+6x+6+4==x2+7x+10==x2+5x+2x+10==x(x+5)+2(x+5)==(x+5)(x+2)\begin{aligned} (x+1)(x+6)+4&=x^2+x+6x+6+4=\\ &=x^2+7x+10=\\ &=x^2+5x+2x+10=\\ &=x(x+5)+2(x+5)=\\ &=(x+5)(x+2) \end{aligned}(x+1)(x+6)+4=x2+x+6x+6+4==x2+7x+10==x2+5x+2x+10==x(x+5)+2(x+5)==(x+5)(x+2)
