Question

if x=3 is the solution of the equation 2x^2-(k+1)x+5 then find the value of k​

Answer 1

Answer:

2×3²-(k+1)×3+5=0

2×9-(k+1)×3+5=0

18-(k+1)×8=0

18-8k+8=0

26-8k=0

-8k=-26

k=-26/-8

k=26/8

hope it helps u