Ayuda porfavor lo necesito para hoy :(
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(a + b) c - d
=c ( a + b ) - d
= ac + bc - d
(a + b)(b - a)
= a² - b²
(b - m)(c - n) + 4a²
=bc + b(-n) - mc - m(-n) + 4a²
= bc - nb - mc + mn + 4a²
(2m + 3n)(4p + b²)
=2m * 4p + 2mb² + 3n * 4p + 3nb²
= 8mp + 2mb² + 12np + 3nb²
(4m + 8p)(a² + b²)(6n - d)
=(4ma² + 4mb² + 8pa² + 8pb²)(6n - 2)
4ma² * 6n + 4ma² ( -d ) + 4mb² * 6n + 4mb² (-d) + 8pa² (-d) + 8pa² (-d) + 8pb² * 6n + 8pb²(-d)
= 24ma²n - 4ma²d + 24mnb² - 4mdb² + 48pa²n - 8pa²d + 48npb² - 8dpb²
Te ayude en 5,espero te sirva,suerte!