Write the coefficient of:
4xy in x2 - 4xy + y2
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Coefficient of 4xy = -1.
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5x2 in 5x2 - 5x
8 in a2 - 8ax + a
Evaluate:
-7x2 + 18x2 + 3x2 - 5x2
Evluate:
b2y - 9b2y + 2b2y - 5b2y
