Question

. What should be added to 4x2 – 5xy + 9 to get
- 2x² + 3xy - 5?​

Answer 1

Let the numberbe p

According to the sum

4x^2-5xy+9=p (-2x^2+3xy-5)

P=-2x^2+3xy-5-4x^2+5xy-9

P=-2x^2-4x^2+3xy+5xy-5-1

P=-6x^2+8xy-6

Hope this solution helpful to you

Answer 2

4x²-5xy+9 = p(-2x²+3xy-5)

p=2x²-4x²+3xy+5xy-5-1

p=-6x²+8xy-6