Math
posted by Jim .
AlgebrAic factorization
1)6(2a3)(a+7)+18(2a3)(3a+2)
2) (3x4)(5x+1)(5x+3)(43x)
I know number 1 and 2 but just wanted to make sure if my answers
I need help in this only:
3) (3x1)^2 + 5(13x)+3x(13x)^2

3. 9x^26x+1 + 515x + 3x(9x^26x+1)
9x^26x+1 + 515x + 27x^318x^2+3x
27x^39x^218x+6
3(9x^33x^26x+2)