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Question
Simplify combining like terms: 5x2y − 5x2 + 3y x2 − 3y2 + x2 − y2 + 8xy2 −3y2
Solution
5x2y - 5x2 + 3yx2 - 3y2 + x2 - y2 + 8xy2 − 3y2
= 5x2y + 3yx2 - 5x2 + x2 - 3y2 - y2 - 3y2 + 8xy2
= x2y (5 + 3) + x2 (-5 + 1) + y2(-3 - 1 -3) + 8xy2
= 8x2y - 4x2 - 7y2 + 8xy2
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