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Well the question states that it wants you to use the factor theorem so it would be a good idea to write down the factor theorem to remind ourselves."A polynomial f(x) has a factor (x - a) if and onl...

a) 1/6b) £20c) £20+£10+(0.1*£30)= £33

b)243*8=24

7xy+3y2=10x 3y2=10-7xy 3y2=x(10-7y) 3y2/10-7y=x

solve 64^2/3 ... note X^2/3 = X^{2 x 1/3} therefore 64^2/3= (64²)^1/3= (4096) ^1/3= 16