Question

Find the value of a and b if the zeros of the polynomial x?+(a+b)x+b are 2,-3

Answer 1

Product of the zeroes = b = 2(-3) = -6
Sum of the zeroes = -(a+b) = 2+(-3) = -1

-(a - 6) = -1

-a + 6 = -1

a = 7