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Problemau tebyg o chwiliad gwe

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6x^{3}+5x^{2}-10x+1+2x^{3}+3x^{2}-3x
I ddod o hyd i wrthwyneb -2x^{3}-3x^{2}+3x, dewch o hyd i wrthwyneb pob term.
8x^{3}+5x^{2}-10x+1+3x^{2}-3x
Cyfuno 6x^{3} a 2x^{3} i gael 8x^{3}.
8x^{3}+8x^{2}-10x+1-3x
Cyfuno 5x^{2} a 3x^{2} i gael 8x^{2}.
8x^{3}+8x^{2}-13x+1
Cyfuno -10x a -3x i gael -13x.
6x^{3}+5x^{2}-10x+1+2x^{3}+3x^{2}-3x
I ddod o hyd i wrthwyneb -2x^{3}-3x^{2}+3x, dewch o hyd i wrthwyneb pob term.
8x^{3}+5x^{2}-10x+1+3x^{2}-3x
Cyfuno 6x^{3} a 2x^{3} i gael 8x^{3}.
8x^{3}+8x^{2}-10x+1-3x
Cyfuno 5x^{2} a 3x^{2} i gael 8x^{2}.
8x^{3}+8x^{2}-13x+1
Cyfuno -10x a -3x i gael -13x.