Question

what should be added to 4x-3x²y+7xy² to get 2x-y​

Answer 1

Answer:

Step-by-step explanation:

4x-3x^2y+7xy^2 + a = 2x-y

a= 2x-y - 4x+3x^2y-7xy^2

a = -2x-y(-3x^2+7xy)

a= -2x-y(7xy-3x^2)

thanks