Wite an expression in simplest form to represent the area of the shaded region

Distribute the 4x to the 3x+2 to get 12x^2+8x

Multiply 2x and 3x to get 6x^2

then combine like terms to get your final answer of 6x^2+8x

B.) -7 - (-3)

The reason why the answer is choice B is because -7 - (-3) equals -4 which shows the temperature change which from sunrise to sunset the temperature went down 4 degrees Celsius.

Wrong Answers:

-3 - (-7) = 4 (Incorrect)

-3 + (-7) = -10 (Incorrect)

-3 x (-7) = 21 (Incorrect)

Hope This Helps :)