Question

X²-px+12=0 if one equation is 3 then find the value of p

Answer 1

since 3 is one of the zeroes of the given quadratic equation

x = 3 satisfies the given equation

substituting x = 3 in

x² - px + 12 = 0

we get,

(3)² - p(3) + 12 = 0

9 - 3p + 12 = 0

21 - 3p = 0

3p = 21

p = 7

Answer 2

Answer:

P = 7

Step-by-step explanation:

Answer is given in the attachment