Question

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

Answer 1

That is answer

Hope it is helpful to u

Answer 2

Answer: p (x) = 2x^2+ px - 15 = 0

Putting x = - 5

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

= 50 - 5p - 15 =0

= 35 - 5p =0

- 5p = - 35

P = 7