Answer
$4x^{2}-7xy+3y^{2}$
Work Step by Step
$4x^{2}-6xy+3y^{2}-xy$
Simplify the expression by combining like terms:
$4x^{2}-6xy+3y^{2}-xy=4x^{2}-(6+1)xy+3y^{2}=...$
$...=4x^{2}-7xy+3y^{2}$
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