Answer:
6x^2 + 9x -15x
Step-by-step explanation:
This may seem hard, but it is actually very simple.
When you think of area, you think of multiplying.
The equation for this rectangle is: 3(2x^2+3x-5)
Why is 3(2x^2+3x-5) the equation?
You are basically multiplying the height (3) and all the widths (2x^2, 3x, and -5)
3 x 2x^2 is 6x^2.
3 x 3x is 9x (3 x 3 = 9)
-5 x 3x is -15x (5 x 3 = 15, plus the negative sign)
Now, you will combine the answers and get 6x^2 + 9x -15x
