Question

Verify whether the following a
D p(x)= 3x+1, x= 3
ii) p(x)=x2-1, x=1,-1
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Answer 1

$p(x) = 3x + 1 \: \: \: \: \: x = 3 \\ p(3) = 3(3) + 1 \\ \: \: \: \: \: \: \: \: \: = 9 + 1 \\ \: \: \: \: \: \: \: \: \: = 10 \\ \\ p(x) = {x}^{2} - 1 \: \: \: \: \: \: x = 1. - 1 \\ p(1) = {1}^{2} - 1 \\ \: \: \: \: \: \: \: \: \: = 1 - 1 \\ \: \: \: \: \: \: \: \: \: = 0 \\ \\ p( - 1) = { - 1}^{2} - 1 \\ \: \: \: \: \: \: \: \: \: \: \: \: = 1 - 1 \\ \: \: \: \: \: \: \: \: \: \: \: \: = 0$

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