find the value of n3 + 5n2 + 5n -2 when n=-2
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Q- n3 + 5n2 + 5n - 2
Solution
Value of n = -2
(-2)3 + 5(-2)2 - 5(-2) -2
6+ 20 - 10 -2
26 - 12
=14
Answer = 14
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