## Algebra 1

$24x^{2}$ + 58x -65
Given the areas, we subtract both areas by one another. ($25x^{2}$ + 40x + 16)-($x^{2}$ - 18x + 81) We distribute the negative sign to the second bracket and get $25x^{2}$ + 40x + 16 - $x^{2}$ + 18x - 81 We add like terms together to simplify the polynomial. $25x^{2}$ - $x^{2}$ + 18x + 40x + 16 - 81 $24x^{2}$ + 58x - 65