Question

if
A=
${4}x {}^{2} + y {}^{2} - 6xy$
B=
$3y {}^{2} + 12x {}^{2} + 8xy$
c=
$6x {}^{2} + 8y {}^{2} + 6xy$
find A+B-C​

Answer 1

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Answer 2

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