Question

factorise x²-1 with solution and explanation​

Answer 1

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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Answer 2

Answer:

the answer is 1(x²-1)

because to factorise we need common number or variable in the terms but in this expression we don't have any common number or variable so we take 1 as common

Hope it helps u