Simplify sqrt(108) B. sqrt(12)-sqrt(27) C. 6sqrt(3)-5sqrt(3) D. 6sqrt(3)-sqrt(2) 2.Solve\;x2+x−12=0 B.\;x2+x−12−6=0 C.\;x2+2x−12−6=0 D.\;x2−x−12=0

Multiply the first term of the first binomial by each term of the second binomial:

$$2x(x) + 2x(-3) = 2x^2 - 6x$$

Multiply the second term of the first binomial by each term of the second binomial:

$$-5(x) + -5(-3) = -5x + 15$$

$$2x^2 + (-6x - 5x) + 15$$ $$2x^2 - 11x + 15$$

Comparing this with the given options, the correct option is C.

The expanded form is $\boxed{\text{C. } 2x^2 - 11x + 15}$.