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    Factorise : 1-1/x^2
    I got 1(1-x^-2)

    Is this right? If not please may you tell me the correct answer and I'll figure out how you got there.
    Thanks


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    The way you typed it is very confusing, could you take a picture of the question?
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    im in bed and it's downstairs so I'll try explain

    Factorise
    1 minus 1 over x squares

    I got 1(1 minus x to the power of negative 2)


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    (Original post by AdeptDz)
    Factorise : 1-1/x^2
    I got 1(1-x^-2)

    Is this right? If not please may you tell me the correct answer and I'll figure out how you got there.
    Thanks


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    You can't factorise that as it is. What was the actual question?

    You can make it into one fraction and then factorise the numerator. But I'd need to see the actual question to confirm if this is the method to use.

    Taking out a factor of 1 is not factorising. You can take out a factor of 1 for any expression.
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    (Original post by AdeptDz)
    Factorise : 1-1/x^2
    I got 1(1-x^-2)

    Is this right? If not please may you tell me the correct answer and I'll figure out how you got there.
    Thanks


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    Difference of two squares.
    a^2-b^2=(a+b)(a-b)
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    (Original post by RDKGames)
    Difference of two squares.
    a^2-b^2=(a+b)(a-b)
    Ohh thanks, didn't even spot it


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    (Original post by notnek)
    You can't factorise that as it is. What was the actual question?

    You can make it into one fraction and then factorise the numerator. But I'd need to see the actual question to confirm if this is the method to use.

    Taking out a factor of 1 is not factorising. You can take out a factor of 1 for any expression.
    Thanks for the reply,
    couldn't think of anything else 😂 so I resorted to that


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