👤
a fost răspuns

(3√5x-1)²+x√180-(2√3x-√5)(2√3x+√5)
Care stie,dau coroana...
URGENT!!!

Răspuns :

(3√5x-1)²+x√180-(2√3x-√5)(2√3x+√5)=
[(3√5x)²-2x3√5x+1²)+x√180-[(2√3x)²-(√5)²]=
45x²-6√5x+1+6x√5-12x²-5=
33x²-4

Alte intrebari