Question

find p(x) = x²+x-2x + 7 then find p(1÷2)
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Answer 1

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Answer 2

Answer:

$p(x) = x {}^{2} + x - 2x + 7$

$p( \frac{1}{2} ) = ( \frac{1}{2} ) {}^{2} + ( \frac{1}{2} ) - 2( \frac{1}{2} ) + 7 \\ = \frac{1}{4} + \frac{1}{2} - \frac{2}{2} + 7 \\ = \frac{1}{4} + \frac{2}{4} - \frac{4}{4} + \frac{28}{4} \\ = \frac{27}{4}$

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