Question

14x^2 - 27x +k =0 , x =5/2​

Answer 1

Step-by-step explanation:

14 (5/2)^2 -27× 5/2 +k = 0

14× 25/4 - 27 × 5/2 +k =0

7× 25/2-27×5/2+k=0

(175-135)/2 +k = 0

40/2 +k =0

20+k = 0

k= -20

hope this will helpful.

Answer 2

Step-by-step explanation:

=> 14 (5/2)^2-27 (5/2)+k=0

=> 14 (25/4)-135/2+k=0

=> 7×(25/2)-135/2+k=0

=> 175/2-135/2+k=0

=> 175-135/2+k=0

=> 40/2+k=0

=> 20+k=0

=> k= -20