Ответ:
1)9/16a^4-6/8a^2b^3+1/4b^6
2)25/9x^4+1/2x^2y^4+36/100y^8
3)b^2-2b^2+b^2=0
4)0
5)c^2+2c^2+c^2=4c^2
6)a^2+2ab+b^2
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Ответ:
1)9/16a^4-6/8a^2b^3+1/4b^6
2)25/9x^4+1/2x^2y^4+36/100y^8
3)b^2-2b^2+b^2=0
4)0
5)c^2+2c^2+c^2=4c^2
6)a^2+2ab+b^2