Question

Daca x=5 si a+b=13,calculati:

(4•a+4•b -2•x) • (2•a+2•b+x)=

(Metoda factorului comun)

Dau coroana,repedeeee!​

Answer 1

Răspuns:

(4 ( a+b) -2x) • ( 2(a+b ) + x )

( 4 • 13 - 10 ) • (2• 13 + 5)

(52-10) • (26+5)

42 • 29 =1218