Twice the area of the triangles, triple that of the rectangles.
2t * 3r = a
654,035 654,035 654,035 654,035 654,035 654,035 654,035
Hey there!
This can be written as

This is in form of

, it can be expanded as
=> (n-7)(n+7)=0
=> n -7 = 0 or n + 7 = 0
=> n = 7 or n = -7
So option 7 , -7 are correct.
Hope this is clear :)
Have a good day:)