Question

If A = 4x²+y²–6xy; B = 3y²+12x²+8xy; C = 6x²+8y²+6xy then Find A+B+C.

Answer 1

Hey there!!

Here's your answer

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A +B+C =
$4 {x}^{2} + {y}^{2} - 6xy + 3 {y}^{2} + 12 {x}^{2} + 8xy + 6 {x}^{2} + 8 {y}^{2} + 6xy \\ = 22 {x}^{2} + 8xy + 12 {y}^{2} \\ = 2(11 {x}^{2} + 4xy + 6 {y}^{2} )$


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Hope it helps

Answer 2

hope you understand my answer