11x^2+16\sqrt{11}x+64

x^2-16x+64

5x^2+8\sqrt{5}x+16

5x^2+10\sqrt{5}x+25

100x^2+20x+1

11x^2+4\sqrt{11}x+4

x^2-18x+81

\frac{9}{25}x^2-\frac{81}{121}

\frac{4}{9}x^2-\frac{9}{100}

9x^2-49

\frac{9}{25}x^2+\frac{8}{15}x+\frac{16}{81}

\frac{81}{25}x^2+\frac{81}{5}x+\frac{81}{4}

25x^2+10x+1

10x^2+20\sqrt{10}x+100

\frac{9}{25}x^2-\frac{9}{121}

\frac{16}{25}x^2+\frac{16}{15}x+\frac{4}{9}

100x^2-49

81x^2-81

\frac{49}{16}x^2+\frac{7}{6}x+\frac{1}{9}

4x^2-12x+9

x^2+8x+16

\frac{1}{9}x^2-\frac{4}{15}x+\frac{4}{25}

\frac{9}{4}x^2-\frac{21}{5}x+\frac{49}{25}

4x^2-49

\frac{49}{4}x^2-\frac{36}{25}