<span title="X^2+5xy-18y^2=??????????????????????????????????">X^2+5xy-18y^2=???????????...</span>

Question

X^2+5xy-18y^2=???????????...

Answer 1

x=2.0034 or x=2.9966

Answer 2

If you want to &quot;factorize&quot; do it like a normal quadratic.

(x+r1*y)(x-r2*y) where r1 and r2 = 5±sqrt(97)/2

so (x+7.4244y)(x-2.4244y)

Answer 3

You could factor it as demonstrated but why would you want to?

Remember that &quot;to solve for two unknowns you have to have two equations.&quot;

Answer 4

you should know x=? y=？first