Question

what should be added to x + 2y^2 to get x^2 - 3x + y^2

Answer 1

Answer:

x² - y² - 4x is added to x + 2y² to get x² - 3x + y²

Step-by-step explanation:

Let the other number a.

according to question:

x + 2y² + a = x² - 3x + y²

a  = x² - 3x + y² - (x + 2y²)

a  = x² - 3x + y² - x - 2y²

a = x² - y² - 4x