Math, asked by diwagardiwa530, 4 months ago

write down the expansion of (1- x) ³ 2mark

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Answered by BoldStyle

5

( 1 - x ) ³

Using the formula

• ( a - b ) ³ = a ³ - 3a²b + 3ab² - b³

( 1 )³ - 3 ( 1 )² ( x ) + 3 ( 1 ) ( x )² - ( x )³

1 - 3x + 3x² - x³ ( or ) - x³ + 3x² - 3x + 1

Changing the symbols

Answer ➡ x³ - 3x² + 3x - 1

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