Question

Which of the following is equivalent to (3x + 1)(x - 2)?

3x2 – 2

3x2 - 6x + x – 2

3x2 + 5x – 2

4x + 1

Answer 1

(3x + 1) (x - 2)

= 3x(x - 2) + 1(x - 2)

= 3x² - 6x + x - 2

= 3x² - 5x - 2