Respuesta :
(3h−5)(5h+4)
=(3h+−5)(5h+4)
=(3h)(5h)+(3h)(4)+(−5)(5h)+(−5)(4)
=15h^2+12h−25h−20
=15h^2−13h−20
=(3h+−5)(5h+4)
=(3h)(5h)+(3h)(4)+(−5)(5h)+(−5)(4)
=15h^2+12h−25h−20
=15h^2−13h−20
