Răspunsuri

2014-09-10T15:26:18+03:00
A) (x-2-2x)(x-2+2x)=-(x+2)(3x-2)=(x+2)(2-3x)
c) x²(x+16)-(x+16)=(x+16)(x²-1)=(x+16)(x-1)(x+1)
d) x²+x²+x-1=x(x+1) +(x²-1)=x(x+1)+(x-1)(x+1)=(x+1)(x+x-1)=(x+1)(2x-1)
b)x(x+6)+(3-y)(3+y) aici cred ca ai gresit si daca da spune sa corectam
da si eu cred
da multumesc mult
dar mai am asemanator 2
xy-x-y+1=
9xy+3x-3y-1=