Step-by-step explanation:
To know the trinomial, we need to apply the distributive property in the expression
-1(x + 5)(x + 6)
So, we get:
-1(x(x) + x(6) + 5(x) + 5(6))
-1(x² + 6x + 5x + 30)
-1(x² + 11x + 30)
Then, we need to multiply each term by -1, so
-1(x²) - 1(11x) - 1(30)
-x² - 11x - 30
Therefore, the answer is
C. -x² - 11x - 30