Question

exemple cu formula de calcul prescurtat (x+a)(x+b)​

Answer 1

Răspuns:

${x }^{2} + (a + b)x + ab$

Answer 2

(x+a)(x+b)​=x²+xb+ax+ab

Exemple:

1) (x+4)(x+5)=x²+5x+4x+20=x²+9x+20

2) (x+3√3) (x+√3)=x²+x√3+3x√3+9=x²+4x√3+9

Kawaiimath