Simplify x(6x – 3) + 5(x² – 4) + 18.

Correct option is B

Given:

Expression to simplify:

​$$x(6x - 3) + 5(x^2 - 4) + 18$$​​

Solution: 

​$$x(6x - 3) + 5(x^2 - 4) + 18 \\ \ \\ =6x^2 - 3x + 5x^2 - 20 + 18 \\ \ \\ =11x^2 -3x -2$$​​