Question

x2=5y => 4y-2x^2 *2(x+y)= ?

Answer 1

Is the task to rewrite 4y-2x^2 *2(x+y)= ? solely in terms of y or perhaps in terms of x? I think I understand what you have written but I do not know what you would like done with what you have written. Would you write more about that? Thank you.