math
posted by jane on .
factor:
2x^3  x^2  162x + 81
and could you show steps as well? thanks
Thank you

Check for a pattern, as follows:
2x^3  x^2  162x + 81
=x²(2x1) 81(2x1) (group terms)
=(2x1)(x²81) (factor groups)
=(2x1)(x+9)(x9) (diff.of 2 squares)