I had to factorise this formula. The answer that I came up with is below:
6ax - 12ay - 18a squared.
6(ax - 2ay - 3a squared)
My book says that the correct answer is:
6a(x - 2y - 3a)
Would my answer have been marked wrong in an exam? Why is the book's answer preferable to mine? What's the rule?
6ax - 12ay - 18a squared.
6(ax - 2ay - 3a squared)
My book says that the correct answer is:
6a(x - 2y - 3a)
Would my answer have been marked wrong in an exam? Why is the book's answer preferable to mine? What's the rule?