👤

(X+3)-2(x+3(x-2)+(x-2)

Răspuns :

Răspuns:

(x+3)-2(x+3)(x-2)+(x-2)=

x+3-2(x²-2x+3x-6)+(x-2)=

x+3-2x²+4x-6x+12+x-2=

0x+13-2x²=

13-2x²