Answer:
value of p is 3
Explanation:
as (-4) is a zero hence let us put 'x' as -4
P(-4) = 0
hence substituting the values
(-4)^2 - 2(-4) - (7p+3) = 0
16 + 8 -7p -3 = 0
24 -7p -3 = 0
24 -3 -7p = 0
21 -7p = 0
21 = 7p
21/7 = p
3 =p
hence value of p is 3
