Question

if x=2 is a root of Quadratic equation 3x² - px - 2= 0​

Answer 1

Answer:

p=5

Step-by-step explanation:

x=2

$3x^{2} -px-2=0\\3(2)^{2} -p(2)-2=0\\12-2p-2=0\\12-2p=0+2\\12-2p=2\\-2p=2-12\\-2p=-10\\p=\frac{-10}{-2}\\p=5$