if -5 is a root of the quadratic equation 2x2+px-15=0 and the quadratic equation p(x^2+x)+k=0 has equal roots. find the value of k

k= 7/4

Step-by-step explanation:

2x²+px-15=0

One of roots is -5, then:

p(x²+x)+k=0

replacing value of p:

it has equal roots, then the discriminant is zero:

b² - 4ac=0

i think it's b

step-by-step explanation:

because the graph is 2 above (0,0)