T^2-36 -------- = 6+t и 5k-2t --------------- = 25k^2-4t^2 help!!
(t^2-36)/(6+t)=((t+6)(t-6))/(6+t)=t-6 (5k-2t)/(25k^2-4t^2)=(5k-2t)/((5k-2t)(5k+2t))=1/(5k+2t)