Question

What should be added to -6y square + 3x to get - 3y square + 5x?

Answer 1

Answer:

let the no. added be "a"

$- {6y}^{2} + 3x + a = - {3y}^{2} + 5x \\ a = 3 {y}^{2} + 2x$

which is the required ans