100x^2+80x+16 | 5x^2+2\sqrt{5}x+1 | 4x^2-49 | \frac{4}{9}x^2-\frac{8}{11}x+\frac{36}{121} | x^2-4 |
x^2-20x+100 | \frac{16}{81}x^2-\frac{2}{3}x+\frac{9}{16} | x^2-16 | 10x^2+12\sqrt{10}x+36 | \frac{9}{4}x^2-\frac{16}{25} |
4x^2+24x+36 | \frac{81}{25}x^2+\frac{72}{55}x+\frac{16}{121} | \frac{49}{4}x^2-\frac{9}{16} | 100x^2+160x+64 | \frac{1}{4}x^2+\frac{6}{5}x+\frac{36}{25} |
x^2-6x+9 | \frac{9}{100}x^2-\frac{18}{25}x+\frac{36}{25} | \frac{9}{4}x^2-7x+\frac{49}{9} | 4x^2-49 | 3x^2-18\sqrt{3}x+81 |
7x^2+6\sqrt{7}x+9 | 4x^2+32x+64 | \frac{49}{16}x^2-\frac{81}{4} | \frac{49}{81}x^2-\frac{1}{25} | 3x^2+2\sqrt{3}x+1 |