Suppose that the functions F and G are defined For all real numbers X as follows. f(x)=x-4
g(x)=3x^2

write the expressions for (f*g)(x) and (f-g)(x) and evaluate (f+g)(2)​

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.