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Question
Evaluate: xy2(x – 5y) + 1 for x = 2 and y = 1.
Sum
Solution
For x = 2 and y = 1
xy2(x – 5y) + 1
2 × 12 (2 − 5 × 1) + 1
2 × (2 − 5) + 1
2 × (−3) + 1
= −5
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Multiplying a Polynomial by a Polynomial
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