Упростите, записав произведения в виде степеней: а) 2 ⋅ 2 ⋅ 2 ⋅ 7 ⋅ 7; д) 12 ⋅ 12 ⋅ (–4) ⋅ (–4) ⋅ 12 ⋅ (–4);
б) 3 ⋅ 5 ⋅ 5 ⋅ 3 ⋅ 5 ⋅ 3 ⋅ 3; е) 2 ⋅ (–2)⋅(–2) ⋅2 ⋅ 2 ⋅ 2 ⋅ (–2) ⋅2 ⋅ 2;
в) ⋅⋅⋅⋅ ⋅⋅ 8 88 444 4
3 33; ж) ⎛ ⎞⎛ ⎞⎛ ⎞⎛ ⎞ ⋅⋅⋅ ⎜ ⎟⎜ ⎟⎜ ⎟⎜ ⎟ ⎝ ⎠⎝ ⎠⎝ ⎠⎝ ⎠
1 11 1 – –––
12 7 7 12 ;
г) ⋅⋅⋅⋅⋅⋅ 1123323
4475575 ; з) ⎛⎞ ⎛⎞ ⋅⋅ ⋅⋅ ⎜⎟ ⎜⎟ ⎝⎠ ⎝⎠
13 13 – –7 – –7 –7
17 17 ( ) ( ) ( ) 2) а) 24 000 000; д) 56,3;
б) 2 012; е) 112 000 000 000;
в) 27 000 000 000 000 000; ж) 456 000;
г) 70 002 233 000; з) 1 000 000 000 000 000 000

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