Question

if x is equal to 2 by 3 and x is equal to -3 are the roots of the quadratic equation X square + 7 x + b is equal to zero then find the value of a and b

Answer 1

Step-by-step explanation:

alpha + beta = -7/a

2/3 - 3 = -7/a

(2-9)/3 = -7/a

-7/3 = -7/a

a = 3

2/3 * -3 = b/a

-2 = b/3

b = -6