if x =-1/2 is a solution of the quadratic equation 3x2+2kx+3=0,find the value of k
Answers
Answered by
3
3x^2+2kx+3=0
3(-1/2)^2+2k(-1/2)+3=0
3/4 +3=k
K=15/4=3.75
3(-1/2)^2+2k(-1/2)+3=0
3/4 +3=k
K=15/4=3.75
abhij2970:
wrong
ans was -9/4
one minite
this is right answer
Answered by
2
3(-1/2)2+2(-1/2)k+3=0
3(1/4)+(-1)k+3=0
3/4-k+3=0
15/4-k=0
therefore, k=15/4....
3(1/4)+(-1)k+3=0
3/4-k+3=0
15/4-k=0
therefore, k=15/4....
wrong
ans was -9/4
Similar questions