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Find the value of the polynomial 2x – 2x3 + 7 using given values for x = -1. |
Answer» p(x) = 2x – 2x3 + 7 Put x = -1 in the given polynomial ∴ p(- 1) = 2(- 1) – 2(-1)3 + 7 = – 2 – 2(-1) + 7 = -2 + 2 + 7 ∴ p(-1) = 7 |
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