Factor completely each expression:

6x2-xy-40y2

#1

Factor completely each expression:
a.) 6x^2 + xy - 40y^2

b.) 3x^3 - 48x

c.) 6x^3 - 21x^2 - 4x + 14

d.) 8x^3 + 27y^3

show all working.

Answer:

  1. 3x-48x
    3x(x^2 -16)
    3x(x-4)(x+4)

  2. 3x^2(2x-7)-2(2x-7)
    (2x-7)(3x^2-2)