Using the given roots, it is found that on the interval , the function is positive.
The function is:
The zeroes are:
Between two zeroes, the function has the same sign, hence, to find the sign on the interval , we find the <u>numeric value of the function of a value of x on the interval</u>, for example f(0), for x = 0.
Then:
Since f(0) is positive, the function is positive on the interval .
A similar problem, in which it is desired to find the sign of the function, is given at brainly.com/question/4787253