Question

find a quadratic polynomial whose one of the zeroes is -15 and sum of the zeroes is 42.

Answer 1

Hey

Here is your answer

Let the other zero be x.

One zero = -15
Sum of zeroes = 42
X + (-15) = 42
X = 42 + 15
X = 57

Product of zeroes = 57 x -15
=-855

Quadratic polynomial = x^2 - (Sum of zeroes)x + product of zeroes
=x^2 - 57x + 855

Hope it helps you!