Question

find the value of k for which the equation x^2+5kx+16=0 has real and equal roots. pls solve fast..

Answer 1

worth the help of quadratic formula d=b^2-4ac d=(5k^)2-4x1x16=0 25k^2-64=0 25k^2=64 k^2=64/25 k=root under 64/25=8/5 the value of k is 8/5