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Let p(–2) = x 2 – 2x + 8 p(–2) = (–2) 2 –2 (–2) + 8 = 4 + 4 + 8 = 8 + 8 = 16 ∴ x = –2 is not a solution of the given equation

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Let p(–2) = x² – 2x + 8
p(–2) = (–2)² –2 (–2) + 8
= 4 + 4 + 8
= 8 + 8 = 16
∴ x = –2 is not a solution of the given equation

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