book Maths Puzzle Numerical Ability

How to find the value when x^4 - 4x^3 + 16x - 16 and x=5/2?

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book Other Question

5(x+5)=25+5x

a) -5 b) 0 c) all real numbers d) no solution Jean, Carol, and Linda were on a committee to compile and staple the pages of their club newsletter. Each worker could have done the job alone in 4 h. Jean started at 3:30 P.M., Ca