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Question

Find the vlaues of x, which satisfy the inequation 
256<122x32,xϵW Graph the solution set on the number line.
[3 MARKS]


Solution

Solving each inequation: 1 Mark each
Solution on the graph: 1 Mark

Given 256<122x32,xϵW256<122x3 and122x32176<122x3 and1222x32x3<12+176 and322x32x3<206 and94xx<5and214x214x<5,xϵWSolution set{0,1,2,3,4}
The graph of the solution set is shown by thick dots. 

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