Suppose that the functions r and s are defined for all real numbers x as follows. =rx−x5 =sx+2x3 write the expressions for ·rsx

Although the question's print is not clear, to the best of my knowledge, as I can see, We are given that:

and

No, we know that, by definition:

Thus, for the functions r and s which are defined for all real numbers x, the answer to the question asked is:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a