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Question

Question 2(ix)
Factorise the following expressions
x2yz+xy2z+xyz2

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Solution

x2yz=x×x×y×zxy2z=x×y×y×zxyz2=x×y×z×zThe common factors are x,y and z.x2yz+xy2z+xyz2=(x×x×y×z)+(x×y×y×z)+(x×y×z×z)=x×y×z[x+y+z]=xyz(x+y+z)

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