Question

Daca x-2y=3,calculati valoarea numarului :a=(2x-4y)+(3x-6y)²+(4x-8y)³

Answer 1

a=2*3+(3*3)²+(3*4)³
a=6+81+144*12
a=87+1728
a=1815

sper ca te-am ajutat!

Answer 2

$a=(2x-4y)+(3x-6y)^2 +(4x-8y)^3\\ a=2(x-2)+[3(x-2y)]^3+[4(x-2y)]^3\\ a=2*3+(3*3)^2+(4*3)^3\\ a=6+9^2+12^3\\a=6+81+1728\\a=1815$