Question

8x^2+7xy-6y^2)+(4x^2-3xy+2y^2)+(-4x^2+xy-y^2)
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Answer 1

Answer:

8x^2+5xy-5y^2

Step-by-step explanation:

=(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

Answer 2

Step-by-step explanation:

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