1. 5*2= 10 10+ 11 = 21 (21 + 2x)
2. 2*2 = 4 4+7=11 (11+4x)
Difference: (9+8x)
I really hope this helps and i am super sorry if it is wrong!
5x²+2x+11 - (7+4x-2x²)
Distribute the negative 1 to each term in the parentheses.
5x²+2x+11-7-4x+2x²
Combine like terms
7x² - 2x + 4
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