Respuesta :
Let's simplify step-by-step.2xy−5x2y−7x+9=2xy+−5x2y+−7x+9
Answer: −5x2y+2xy−7x+9= A(-7)
i think, im not really that sure, but i think its A (-7) tell me if im right. oh and if this helps The constant is the term which there are no variables such as x or y attached.