subtract the sum of 2 x square - 3 x y + 4 y square and x square - 2 x y from the sum of 4 x square - 2 X Y and minus y square + 7 x y
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Answer:
-x²+4xy+5y²
Step-by-step explanation:
Sum of 2x²- 3xy +4y²and x²-2xy
= (2x²- 3xy +4y²)+(x²-2xy)
= 3x²-xy+4y²
Sum of 4x²-2xy and -y²+7xy
= (4x²-2xy) +( -y²+7xy)
= 4x²-5xy -y²
Subtracting both the equations, we have:
(3x²-xy+4y²) - (4x²-5xy -y²)
= 3x²-xy+4y²-4x²+5xy +y²
= -x²+4xy+5y²
Hope this helps!
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