Question

add 8x^2 + 7xy-6y^2,4x^2-3xy+2y^ 2 and -4x^2+xy -y^2​

Answer 1

Answer:

-2xy+y² is the answer mate

Answer 2

Question:-

$( {8x}^{2} + 7xy - {6y}^{2} ) + ( {4x}^{2} - 3xy + {2y}^{2} ) + ( { - 4x}^{2} + xy { - y}^{2} )$

Solution:-

${8x}^{2} + 7xy - {6y}^{2} + {4x}^{2} - 3xy \: { + \: 2y}^{2} { - 4x}^{2} + xy { - y}^{2}$

${8x}^{2} + {4x}^{2} { - 4x}^{2} + 7xy - 3xy + xy { - 6y}^{2} { + 2y}^{2} { - y}^{2}$

${8x}^{2} + 5xy { - 5y}^{2}$

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