Answer:
7e^2-4e-11
Step-by-step explanation:
(5e^2-e-7)-(-2e^2+3e+4)
5e^2-(-2e^2)-e-3e-7-4
5e^2+2e^2-4e-11
5e^2-e-7+2e^2-3e-4
7e^2+7e-11e-11
7e(e+1)-11(e+1)
(7e-11)(e+1)
