Question

Yang saya bulati tolong

Answer 1

14. Possible quadratic for k when Diskriminan D equal to 0

D= 0
b²-4ac = 0
k²-4.1.(2k-3) = 0
k²-8k+12=0
(k  -  2)(k -   6) = 0
k-2 = 0   or  k - 6 = 0
k = 2  or k = 6

15. real roots when D ≥ 0
 
     b²-4ac ≥ 0 
    6² - 4.2.p ≥ 0
    36 - 8 p ≥ 0
    36 ≥ 8p
    36/8 ≥ p   
 
   p ≤ 36/8
   p ≤ 9/2     or  p ≤ 4 1/2