Question

Daca x-2y=3,calculati valoarea numarului:
A=(2x-4y)+(3x-6y)totul la2 +(4x-8y)totul la puterea a 3.
Va rog e urgent

Answer 1

A=[(2x-4y)+(3x-6y)]^2+(4x-8y)^3=
=[2(x-2y)+3(x-2y)]^2+4(x-2y)^3=
=[2×3+3×3]^2+(4×3)^3=
=[6+9]^2+12^3=
=15^2+12^3=
=225+1728=
=1953