7х(2 х х+1)-2 х(2 х х+1)=9 999 999+9 999 999+9 999 - вопрос №4863607212219999999999999999999998 от maksliifeoy85jo 02.10.2021 18:34

Question

Математика: 7х(2 х х+1)-2 х(2 х х+1)=9 999 999+9 999 999+9 999 999+8

maksliifeoy85jo · Answer

7 ·(2·х+1) - 2 ·(2·х+1)=9 999 999 + 9 999 999 + 9 999 999 + 8 7 ·(2х+1) - 2 ·(2х+1)= 3·9 999 999 +85·(2х+1) =3000000510х+5 =3000000510х =30000005 - 510х =30000000х=3000000...