Question

Which statement is not always true?

A.The sum of a rational number and an irrational number is irrational.
B.The sum of two rational numbers is rational.
C.The product of two irrational numbers is irrational.
D.The product of two rational numbers is rational.

Answer 1

C.The product of two irrational numbers is irrational.

Answer 2

C) this isn't always true
If the irrational parts of the question can add together to make 0 and cancel each other out you will be left with a rational number