Thực hiện phép tính: a) (x + 3)^3; b) (x-2/5)^3; c) (3.m^2 + n/4)^3
Giải thích
a) x3 + 9x2 + 27x + 27.
b) x3−65x2+1225x−8125.
c) 27m6+274m4n+916m2n2+n364.
d) −827u9−2u6v2−92u3v4−278v6.
a) x3 + 9x2 + 27x + 27.
b) x3−65x2+1225x−8125.
c) 27m6+274m4n+916m2n2+n364.
d) −827u9−2u6v2−92u3v4−278v6.