1.

Find the value of the polynomial 2x – 2x3 + 7 using given values for x = 3.

Answer»

p(x) = 2x – 2x3 + 7

 Put x = 3 in the given polynomial. 

∴ p(3) = 2(3) – 2(3)3 + 7 

= 6 – 2 x 27 + 7 

= 6 – 54 + 7 

∴ P(3) = – 41



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