Question

6x^2+15y^2=16
I don't know what to do with the y^2

Answer 1

anything wrong with it? looks like a well-behaving "y", so is a nice "y", is really a lovely one

Answer 2

y^2=-6/15x^2+16/15
I don't know what to do.

Answer 3

\(\bf 6x^2+15y^2=16\implies y^2=-\cfrac{6x^2}{15}+\cfrac{16}{5}
\\ \quad \\
taking\implies \sqrt{\qquad }\qquad thus
\\ \quad \\
\sqrt{y^2}=\sqrt{-\cfrac{6x^2}{15}+\cfrac{16}{5} }\implies y=\sqrt{-\cfrac{6x^2}{15}+\cfrac{16}{5} }\)