Question

which expression is equivalent to 3(x+2)(3x-1) ​

Answer 1

Answer: 9x2 + 15x -6

Step-by-step explanation: ( 3x + 6) (3x -1)

9x2 - 3x + 18x - 6

= 9x2 + 15x -6

Answer 2

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