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Mathematics 6 Online
OpenStudy (anonymous):

Help with 2 problems please.

OpenStudy (anonymous):

OpenStudy (anonymous):

8 rationalise by multplying by \[1+\sqrt{3}\] both numerator and denominator

OpenStudy (anonymous):

Could you explain that? I missed the lesson over this.

OpenStudy (anonymous):

it is the difference of squares\[(a-b)*(a+b)=a ^{2}-b ^{2}\]

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