Question

Hasil dari (3m+2n)^4=....


tolong di jawab besok di kumpul

Answer 1

(a + b )^4 = a^4 + 4.a^3b+ 6 a^2b^2+ 4ab^3+ b^4
( 3 m + 2n)^4 = (3 m)^4 + 4(3m)^3.(2n) + 6(3 m)^2(2n)^2 + 4(3m)(2n)^3 + (2n)^4
= 81 m^4 + 216 m^3n + 216 m^2n^2 + 96 m n^3 + 16n^4