Which of the following is the LCD of the denominators 3x(x−1)3x(x-1) and 6(x2−$$1)6(x^2-1$$)?

Adding and Subtracting Rational Expressions with Different Denominators

8. Rational Expressions and Equations / Adding and Subtracting Rational Expressions with Different Denominators / 문제 1

문제 1

Which of the following is the LCD of the denominators $3 x (x - 1)$ and $6 (x^{2} - 1)$ ?

$3 x (x - 1)$

$6 x (x - 1) (x + 1)$

$6 (x - 1) (x + 1)$

$3 x (x - 1) (x + 1)$