X3-64=x3-64
x3-x3=64-64
x=0
=(2,71²-1,29²)(2,71²+1,29²) / (2,71²+2·2,71·1,29+1,29²-2,71·2,58)=
(2,71-1,29)(2,71+1,29)(2,71²+1,29²) / (2,71²+1,29²)=1,42·4=5,68.
знак / -черта дроби
( Х - 2у^2 )( х^2 - 2у ) = х^3 - 2ху - 2х^2у^2 + 4у^3
( Х - у )( х^2 + ху - у^2 ) = х^3 + х^2у - ху^2 - ух^2 - ху^2 + у^3 = х^3 + у^3 - 2ху^2 + х^2у - ух^2
{6(x-y)-4(x+y)=10
{15y=2x
{6x-6y-4x-4y=10
{15y=2x
{2x-10y=10 |:2
{15y=2x
{x-5y=5
{15y=2x
{x=5y+5
{15y=2(5y+5)
15y=10y+10
15y-10y=10
5y=10
y=2
x=5*2+5
x=10+5
x=15
Ответ: (15;2)