Question

Alpha and betha are the roots of xsquare-5x-1=0 complete the following activity to find the value of alpha cube and betha cube

Answer 1

Answer:

x2-5x+k. Here, a=1, b=-5 and c=k. Now, α+ β = -b/a= -(-5)/1= 5. α*β = c/a= k/7= k. Now,α - β =1. Squaring both sides, we get,. (α - β)2=12.