Question

Kindly help, it's really important...​

Answer 1

Answer:

k =-140

Step-by-step explanation:

2x^2+px -15 =0

putting x=-5

2*(-5)^2 +p(-5)-15=0

50 -5p -15=0

5p =35

p =7

p(x^2+x)+k =0

putting x=-5 and p =7

7((-5)^2 -5) +k =0

25-5+ k/7 =0

k/7 = -20

k = -140