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Problemau tebyg o chwiliad gwe

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-\frac{1}{9}-x-\frac{1}{4}+x^{2}
Cyfuno x^{2} a -x^{2} i gael 0.
-\frac{13}{36}-x+x^{2}
Tynnu \frac{1}{4} o -\frac{1}{9} i gael -\frac{13}{36}.