You can
put this solution on YOUR website! 16c6 - 2f6
Factor out 2:
2(8c6 - f6)
Write the expression in parentheses as the difference of two
cubes. The trickiest part is writing the first term 8c6 as a cube:
8c6 = 23c6 = 23(c2)3 = [2(c2)]3 = [2c2]3 = (2c2)3
f6) is easily written as a cube this way: (f2)3.
Change parentheses to brackets so you can have parentheses inside.
2[23c2)3 - (f2)3]
Rule: A³-B³ = (A-B)(A²+AB+B²)
2[(2c²) - (f²)][(2c²)² + (2c²)(f²) + (f²)²]
Sinplify
2(2c2-f2)(4c4+2c2f2+f4)
Edwin