Question

What should be added to 3x²-5xy+4y² to obtain x²-xy+y²?

Answer 1

Hey there!

Here's the solution to your question.

Answer:  -2x² +4xy - 3y²

Step-by-step explanation:

To know what should be added to 3x²-5xy+4y² to obtain x²-xy+y²,

we have to subtract 3x²-5xy+4y² from x²-xy+y².

So,   1 x²  -  1 x y +  1 y²

 (-)   3 x² -  5 x y + 4 y²

      - 2x² + 4 x y - 3 y²

Therefore, - 2x² +4xy - 3y² should be added to 3x²-5xy+4y² to obtain x²-xy+y².

         

Thanks!