2⁵⁰ ÷2⁴⁵ +2⁵⁰ - 2² ×[64÷2⁵+ 2⁴ ÷(2 × 2⁵ - 2³ ×
7)]
=
=2⁵ +2⁵⁰ - 2² ×[2⁶÷2⁵+ 2⁴ ÷(2⁶ - 2³ ×
7)]=
=2⁵ +2⁵⁰ - 2² ×(2+ 2⁴ ÷2³(2³-
7)
=
=2⁵ +2⁵⁰ - 2² ×(2+ 2⁴ ÷2³(8-
7)
=
=2⁵ +2⁵⁰ - 2² ×(2+ 2⁴ ÷2³)
=
=2⁵ +2⁵⁰ - 2² ×(2+ 2)
=
=2⁵ +2⁵⁰ - 2⁴
=
=2⁴(2-1) +2⁵⁰
=
=2⁴ +2⁵⁰ =
=2⁴(1+2⁴⁶)