Now, suppose one of the roots of the polynomial
function is complex. The roots of the function are 2
+i. and 5. Write the equation for this polynomial
function.
Which of the following must also be a root of the
function?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.