Find the least common multiple of the following polynomials 9(x+2)(2x-1) and 3(x+2)

Hi, can anyone show me how to do this problem? 100 points for this. in advance

I'm confused on this could anyone me and show me what i need to do to solve it.

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.