Respuesta :

Answer:

-50xsquared + 23x-9

Step-by-step explanation:

distribute -5x through the parentheses and evaluate the power to get -50xsquared+25x-2x-16+7. ten add the like terms to get -50xsquared+23x-16+7. Add the like terms to get -50xsquared+23x -9