Identify if the expression can be factored as sum or difference of cubes 1331a^3 - 512b^3

The answer to your question is Yes, it can be factored as difference of cubes

Step-by-step explanation:

Data

                    1331a³  -  512b³

Process

1.- Check if 1331 has a exact cubic root

                ∛1331 = 11

2.- Check if 512 has a exact cubic root

                ∛512 = 8

3.- Conclusion

This expression can be factored as a difference of cubes

4.- Result

             1331a³ - 512b³ = (11a - 8b)(11²a² + (11a)(8b) + 8²b²)

                                     = (11a - 8b)(121a² + 88ab + 64b²

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.