Please help. This is from Algebra 2, and the answer choices are below the ‘find the area’

Answer:
5x^2 - 20
Step-by-step explanation:
(x-2)(3x+5) --> 3x^2+5x-6x-10 = 3x^2 - 1x - 10
(x-2)(2x+5) --> 2x^2+5x-4x-10 = 2x^2 + 1x - 10
3x^2 - 1x - 10 + 2x^2 + 1x - 10 = 5x^2 - 20