Question

if 3x^2-2k+m=0 find k where x=2 and m=3

Answer 1

3(2^2) -2k +3 = 0

(3*4) + 3 = 2k

12 + 3 = 2k

15 = 2k 

15/2 = k

i hope this will help you


-by ABHAY

Answer 2

3x²-2k+m=0
or 3*(2)² -2k+3=0
or 12-2k+3=0
or 15-2k=0
or -2k = -15
or k = 15/2