Question

The factors of the polynomial 3x3 - 75x do NOT include which of the

following:
Ox+5
O x-5
O 3x
O3x+25

Answer 1

3x + 25 is not a factor

Explanation:

3x³ - 75x ← factor out common factor of 3x from each term

= 3x(x² - 25) ← x² - 25 is a difference of squares

= 3x(x - 5)(x + 5) ← in factored form

thus 3x + 25 is not a factor of the polynomial