Q1 The product of my (2x -D (4x2+2x+1) is
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Answer:
2x - D ( 9 + 2x )
= 9(2x - D) 2x(2x - D
(18x - 9D )(4x² - 2Dx)
72x³ - 36x²D - 36x²D + 18D²x
72x³ -72x²D + 18D²x
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