Question

Factor completely 4x3 + 8x2 − 25x − 50. (2 points)

Select one:

a. (4x2 − 25)(x + 2)

b. (2x − 2)(2x + 2)(x + 5)

c. (2x − 5)(2x + 5)(x + 2)

d. (2x − 5)(2x + 5)(x − 2)

Answer 1

The answer is c I checked it

Answer 2

4x³ + 8x² -25x - 50

4x²(x + 2) -25(x + 2)

= (4x² - 25)(x + 2)

NOTE: 4x² - 25 is the difference of squares

= (2x - 5)(2x + 5)(x + 2)

Answer: C