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Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

Which of the following expressions is equal to 2x^2+8

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r