Respuesta :
Answer: 9x2 + 15x -6
Step-by-step explanation: ( 3x + 6) (3x -1)
9x2 - 3x + 18x - 6
= 9x2 + 15x -6
3(x+2)(3x-1)=3•(x+2)•(3x+1).
1. Distribute the 3 across x+2 to get (3x+6)•(3x-1)
2. Distribute the 3x term from the first expression across the 3x-1. And then do the same with the 6.
9x^2-3x+18x-6
And then combine like terms
9x^2+15x-6
1. Distribute the 3 across x+2 to get (3x+6)•(3x-1)
2. Distribute the 3x term from the first expression across the 3x-1. And then do the same with the 6.
9x^2-3x+18x-6
And then combine like terms
9x^2+15x-6