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\frac{3}{5}\left(\frac{3}{5}x^{2}-7x^{2}\right)
ຮວມ \frac{6}{5}x^{2} ແລະ -\frac{3}{5}x^{2} ເພື່ອຮັບ \frac{3}{5}x^{2}.
\frac{3}{5}\left(-\frac{32}{5}\right)x^{2}
ຮວມ \frac{3}{5}x^{2} ແລະ -7x^{2} ເພື່ອຮັບ -\frac{32}{5}x^{2}.
-\frac{96}{25}x^{2}
ຄູນ \frac{3}{5} ກັບ -\frac{32}{5} ເພື່ອໃຫ້ໄດ້ -\frac{96}{25}.
\frac{3}{5}\left(\frac{3}{5}x^{2}-7x^{2}\right)
ຮວມ \frac{6}{5}x^{2} ແລະ -\frac{3}{5}x^{2} ເພື່ອຮັບ \frac{3}{5}x^{2}.
\frac{3}{5}\left(-\frac{32}{5}\right)x^{2}
ຮວມ \frac{3}{5}x^{2} ແລະ -7x^{2} ເພື່ອຮັບ -\frac{32}{5}x^{2}.
-\frac{96}{25}x^{2}
ຄູນ \frac{3}{5} ກັບ -\frac{32}{5} ເພື່ອໃຫ້ໄດ້ -\frac{96}{25}.