(x-1)(2x^2+2x+2)
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2x³ - 2

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

= x(2x² + 2x + 2) - 1(2x² + 2x + 2) ← distribute both parenthesis

= 2x³ + 2x² + 2x - 2x² - 2x - 2 ← collect like terms

= 2x³ - 2

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

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