Respuesta :
i think it is this you should download photomath it helps alot -77 -225tx -896
1 + 90t - 105t2 × 17 - 896t - 78
61 - 80640t2 - 105t2
61 - 80745 t2
61 - 80640t2 - 105t2
61 - 80745 t2