(4a^2 + 4a)/(a^2-25) x (a^2-5a)/8a Factor the possible ones to be easier [4a(a+1)]/[(a-5)(a+5)] x [a(a-5)/8a] Cancel the a-5 [4a(a+1)]/[a+5)] x a/8a cancel the 4a and 8a(8a becames 2) [a+1]/[a+5] x a/2 now multiply [a(a+1)]/[2(a+5)]<---- can be the answer or: (a^2+a)/(2a+10)