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#1 2005-12-13 05:49:56

jellyandicecream
Member
Registered: 2005-12-13
Posts: 2

:: Factorising ::

I need to factorise this equation and i`ve tried but really can't find the answer!
10n² - 20N + 10
Help?
thanks.

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#2 2005-12-13 06:12:56

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: :: Factorising ::

First, take out the common multiple of 10.

10(n² - 2n + 1)

The bit in the brackets now factorises easily, to give:

10(n-1)²


Why did the vector cross the road?
It wanted to be normal.

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#3 2005-12-13 07:27:11

jellyandicecream
Member
Registered: 2005-12-13
Posts: 2

Re: :: Factorising ::

Ah thanks!

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