Question

(12n4+8p5)( 12n4-8p5)

Answer 1

(12X4n+8x5p) x (12x4n-8x5p)
(48n+8x5p) x (12x 4n-8x5p)
48n+40p (12x4n-8x5p)
(48n+40p) x (48n-8x5p)
(48n+40p) x (48n-40p)
(48n) al cuadrado"2" - (40p) al cuadrado "2" 
48"2" n"2" - (40p)"2" 
48"2" n"2" -40"2" P"2"
2304n"2" - 40 "2" p"2"
R= 2304n"2" - 1600p"2"