Question

................................................................................................................................................. Dau coroana

Answer 1

8.
a)(x-1)²/(x-1)(x+1)=(x-1)/(x+1)
b)(x-2)(x+2)/(x+2)²=(x-2)/(x+2)
c)(x-3)(x+3)/(x-3)²=(x+3)/(x-3)
d)(x+5)²/(x+5)(x-5)=(x+5)/(x-5)
e)(x-7)(x+7)/(x+7)²=(x-7)/(x+7)
f)(x-6)(x+6)/(x+6)²=(x-6)/(x+6)

9.
a)(x-3)(x+3)/(x+2)(x+3)=(x-3)/(x+2)
b)(x-5)(x+5)/(x+6)(x+5)=(x-5)/(x+6)
c)(x+4)²/(x+4)(x+3)=(x+4)/(x+3)
d)(x-2)(x-3)/(x-2)²=(x-3)/(x-2)
e)(x-2)(x-4)/(x-4)²=(x-2)/(x-4)
f)(x-4)(x+4)/(x-4)(x-5)=(x+4)/(x-5)