Răspuns :
Explicație pas cu pas:
x²-2x-35=x²+5x-7x-35=x(x+5)-7(x+5)=(x-7)(x+5)
x²+10x+25=(x+5)²
=>(x²-2x-35)/(x²+10x+25)=(x-7)(x+5)/(x+5)²=(x-7)/(x+5)
Explicație pas cu pas:
x²-2x-35=x²+5x-7x-35=x(x+5)-7(x+5)=(x-7)(x+5)
x²+10x+25=(x+5)²
=>(x²-2x-35)/(x²+10x+25)=(x-7)(x+5)/(x+5)²=(x-7)/(x+5)