Factorise: (i) (a+b)² _ 11 (a+b)-42
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Subtracting a fraction from a whole
Rewrite the whole as a fraction using t2 as the denominator :
t t • t2
t = — = ——————
1 t2
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
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