find the value of p,if ½ is root of quadratic equation x² +px -5/4=0
Answers
Answered by
1
-p = 0.5 + beta
-5/4 = beta/2
Beta = - 2.5
P=-2.5
-5/4 = beta/2
Beta = - 2.5
P=-2.5
Answered by
5
it 1/2 is a root then, by putting x = 1/2
(1/2)² +p/2 -5/4 = 0
1/4 + p/2 - 5/4 = 0
so, 1+2p-5/4 = 0
so, 2p - 4 = 0
so, p = 4/2 = 2
(1/2)² +p/2 -5/4 = 0
1/4 + p/2 - 5/4 = 0
so, 1+2p-5/4 = 0
so, 2p - 4 = 0
so, p = 4/2 = 2
Similar questions