Question

I need to factorize:
9X^2 + 3X^3
6X^2 + 12X
3X^3 - 9X
4X^2 + 28X^3

Answer 1

Step-by-step explanation:

${9x}^{2} + 3 {x}^{3} = 3 {x}^{2}(3 + x) \\ 6 {x}^{2} + 12x = 6x(x + 2) \\ 3 { x }^{3} - 9x = 3x( {x}^{2} - 3) = 3x(x + \sqrt{3})(x - \sqrt{3} ) \\ 4 {x}^{2} + 28 {x}^{3} = 4 {x}^{2} (1 + 7x)$