Question

varog ajutatima la ex.acestea varog pliz

Answer 1

4.
(x²-9)/(x²-6x+9)=(x-3)(x+3)/(x-3)²=(x+3)/(x-3)

5.
a) 4/(x+1)+2/(x+3)=( 4x+12+2x+2)/(x+1)(x+3)=2(3x+7)/(x+1)(x+3)
b)(x-6)/(x+8) ×(x+4)(x-6)=(x+4)/(x+8)
c)(x+4)/(x-6):(x+2)/(x-6)=(x+4)/(x-6) ×(x-6)/(x+2)=(x+4)/(x+2)