Question

(p-2)^3.
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Answer 1

=(p-2)^3
=(p-3) × (p-3) ×(p-3)
=(p^2-3p-3p+9) ×(p-3)
=(p^2 -6p +9)×(p-3)
=(p^3-3p^2-p^2+18p+9p-27)
=p^3-4p^2+27p-27