Question

If -5 i a root of the quadratc equation 2x2 + px - 15 and the equation p(x2 + x) + k

Answer 1

2(-5)² + p(-5) - 15 = 0

50 - 5p - 15 = 0

5p = 35

p = 7

7{(-5)² - 5 } + k = 0

7(20) + k = 0

k = -140

mark it as a brainliest answer