1.

Find the value of p(x) = 3x2 + x + 7 when x = – 2.

Answer»

p(x) = 3x2 + x + 7 

Substituting x = – 2, we get

p(-2) = 3(2)2 + (-2) + 7 

= 12 – 2 + 7

∴ p(-2) = 17



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