25x^2+60x+36

3x^2-14\sqrt{3}x+49

7x^2+16\sqrt{7}x+64

100x^2-25

9x^2+18x+9

4x^2-8x+4

\frac{9}{25}x^2-\frac{18}{25}x+\frac{9}{25}

\frac{1}{9}x^2-\frac{16}{121}

2x^2-20\sqrt{2}x+100

7x^2+2\sqrt{7}x+1

25x^2+40x+16

\frac{36}{25}x^2+\frac{24}{25}x+\frac{4}{25}

\frac{49}{4}x^2-\frac{4}{9}

4x^2-4

\frac{36}{25}x^2+\frac{36}{55}x+\frac{9}{121}

9x^2+18x+9

x^2-1

11x^2+14\sqrt{11}x+49

\frac{1}{9}x^2-\frac{2}{33}x+\frac{1}{121}

4x^2-36

\frac{49}{81}x^2-\frac{16}{25}

\frac{9}{25}x^2+\frac{27}{25}x+\frac{81}{100}

81x^2+126x+49

\frac{1}{100}x^2-\frac{81}{121}

\frac{1}{25}x^2+\frac{9}{25}x+\frac{81}{100}