x²-1 factorise this equation
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Algebra Examples
Algebra ExamplesRewrite 1 as 12 . Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=x and b=1
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Answer:
( a + b )( a - b ) = a² - b²
it is one of the formula in algebra
in this question
x² - 1 can be written as
x² - 1² = ( x+ 1 )( x - 1 )
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