👤
Parkraluca
a fost răspuns

Cum fac : (3x+1)( x^{2} +2x-5)- (x+2)(2x^{2} -x+3) ?
pls e urgent

Răspuns :

Alivas4
(3x+1)(x^2+2x-5)-(x+2)(2x^2-x+3)=
(3x^3+6x-15x+x^2+2x-5)-(2x^3-x^2+3x+4x^2-2x+6)=
3x^3+7x^2-13x-5-2x^3-3x^2-x-6=
x^3+4x^2-14x-11
Spidie
(3x+1)( x² +2x-5)- (x+2)(2x² -x+3)= (3x³+6x²-15x+x²+2x-5)-(2x³-x²+3x+4x²-
-2x+6)= 3x³+7x²-13x-5-2x³-3x²-x-6= x³+4x²-14x-11

Alte intrebari