. Which of the following sets of problems shown have the same sum? (h³-2h)+(3 h²+4 h) and (3 h 3+2h-7h²)+(10h2-2h³) (712-21-5)+(-71²+8-21) and (3 t+5)+(-7t-2) (8 m-3m²+8) + (5 m²-9-10 Om) and (3 m-7)+(2 m²-8m+ 6) (12+6p)+(-p+p2-4) and (p2 -4p+8)+(9p-20²)
