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# Confused .. :/

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1. 1/4 (1/7u7 -1/2u6)

Why is this equivalent to 1/56u6 (2u - 7) ??

I get that you divide 1/14 u6 inside the bracket but why isn't the same thing applied to 1/4?? Why do you divide 14u6 outside the bracket instead of 1/14 u6 .. is this same sort of a rule??
1/4 (1/7u7 -1/2u6)

Why is this equivalent to 1/56u6 (2u - 7) ??

I get that you divide 1/14 u6 inside the bracket but why isn't the same thing applied to 1/4?? Why do you divide 14u6 outside the bracket instead of 1/14 u6 .. is this same sort of a rule??
You're actually multiplying the factor outside bracket when you take out a factor. For example you can simplify 3(3x-3) further into 9(x-1) as you take a factor of 3 out and multiply it by the current factor and divide the inside terms by 3. So in this example you are multiplying the outside by 1/14u^6 so you divide the terms inside the bracket by 1/14u^6 and you get what was given
3. (Original post by Synmatic)
You're actually multiplying the factor outside bracket when you take out a factor. For example you can simplify 3(3x-3) further into 9(x-1) as you take a factor of 3 out and multiply it by the current factor and divide the inside terms by 3. So in this example you are multiplying the outside by 1/14u^6 so you divide the terms inside the bracket by 1/14u^6 and you get what was given
Oh I see, so whatever you do to the value outside the bracket .. you should do the exact opposite to the inside of the bracket!!

Thank you!!

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