Question

Which of the following is equal to x³ – 225x * a. x(1 – 15x) (1 + 15x) b. x(x – 15) (x + 15) c. x(1 – 15x) (1 – 15x) d. x(1 + 15x) (1 – 15x).

Answer 1

Answer:

x(x-15)(x+15)

Step-by-step explanation:

x^3- 225x

= x(x^2-225)

that is, x(x^2-15^2)

= x(x-15)(x+15)