Question

what should be taken away from 3x2 - 4y2 + 5xy + 20 to get-x2-y2+ 6xy+20​

Answer 1

Step-by-step explanation:

Let the requried expression be (?)

Then,

(3x²-4y²+5xy+20)-(?)=x²-y²+6xy +20

-(?)=(x²-y²+6xy+20)-(3x²-4y²+5xy+20)

-(?)=(-2x²+3y²+xy)

?=2x²-3y²-xy

By:D.Kamal(hitmanbeastman50)

Answer 2

Answer:

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