x⁴+x³+x²=
(x+2)²-(x+2)
(2x+5)(x-3)-4(2x+5)=
va rog ajutatima va implor

Răspuns:
1 ) x^4+x^3+x^2=x^2×(x^2+x+1)
2). (x+2)^2-(x+2)=(x+2)×(x+1)
(x+2)×(x+2-1)
(x+2)×(x+1)
3) (2x+5)(x-3)-4(2x+5)=
(2x+5)×(x-3-4)
=(2x+5)×(x-7)