Question

find a quadriatic polynomial, if the sum of the zeroes is -3 and one of its zero is 7​

Answer 1

Answer:

$x^2 + 3x - 70$

Step-by-step explanation:

Number of zeroes of a quadratic polynomial = 2

Sum of the zeroes of a specific quadratic polynomial = -3

One of the zero = 7

Let other zero be $y$

$7 + y = -3\\y = -10$

$f(x) = (x + 10)(x - 7)\\f(x) = x^2 - 7x + 10x - 70\\f(x) = x^2 + 3x - 70$