Question

What are the zeros of the polynomial function?

f(x)=x2+9x−70

Enter your answers in the boxes.

The zeros of f(x) are
and
.

Answer 1

x^2 + 9x - 70 = 0

x^2 - 5x + 14x - 70 = 0

x(x - 5) + 14(x - 5) = 0

(x - 5)(x + 14) = 0

Answer is 5, -14

Answer 2

we have been asked to find the zeros of the given polynomial function.

The given Polynomial function is

`f(x)=x^2+9x-70`

As we know that the zeros of the polynomial function is defined as the values for which the function returns zero.

So we can write

`image`

The zeros of f(x) are 5 and -14