Wie rechnen Sie mit: 2x ^ 2 + 7x + 3 ?

Wie rechnen Sie mit: 2x ^ 2 + 7x + 3 ? Antworten: (x+3)(2x+1) Erläuterung: “using the a-c method of factorising“ “the factors of „2xx3=6 “which sum to + 7 are + 6 and + 1″ “split the middle term using these factors“ rArr2x^2+6x+x+3larrcolor(blue)“factor by grouping“ =color(red)(2x)(x+3)color(red)(+1)(x+3) “take out the common factor „(x+3) =(x+3)(color(red)(2x+1))Weiterlesen