Решите : 1. (5m-7bc+2)-(3m+7bc+2)
2. 4c^2(c^3+2)
3. (2x+3)-2(5x-1)=(7x-1)-2
4.(3x+1)
5. 3a+12b
6. 7a^2b-4ab^2
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Решите : 1. (5m-7bc+2)-(3m+7bc+2)
2. 4c^2(c^3+2)
3. (2x+3)-2(5x-1)=(7x-1)-2
4.(3x+1)
5. 3a+12b
6. 7a^2b-4ab^2
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Answers & Comments
точно незнаю как решать
1. 5m-7bc+2-3m-7bc-2=2m-14bc
2.4c^5+8c^2
3.2x+3-10x+2=7x-1-2
3+2+1+2=7x-2x+10x
8=15x
x=8/15
4. не понятно написал
5. 3(a+4b)
6.ab(1a-4b)