## Algebra 1: Common Core (15th Edition)

$−8x^{2}+3xy+(−9x)+(−3)$
To turn the example into an addition problem (a sum), change the minus signs to plus signs, and then change the sign of each of the following terms. subtract 3 becomes add -3 and subtract 9x becomes add -9x. Thus; $−8x^{2}+3xy−9x−3=−8x^{2}+3xy+(−9x)+(−3)$