Answer:
(1/2)(8x³ + x² - 6x + 12)
Explanation:
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Multiplying all four terms of the given polynomial by 2 results in
x² - 6x + 8x³ + 12
Rearranging these terms in descending order by powers of x:
(1/2)(8x³ + x² - 6x + 12)
Note that we cannot just ignore that '2' in the denominator, because the given polynomial is an expression, not an equation.