Given the function
f(x)={4x2−5x<18x2−5x≥1\displaystyle {f{{\left({x}\right)}}}={\left\lbrace\begin{array}{cc} {4}{x}^{{2}}-{5}&{x}<{1}\\{8}{x}^{{2}}-{5}&{x}\geq{1}\end{array}\right.}

Calculate the following values:
f(−2)=\displaystyle {f{{\left(-{2}\right)}}}=  
f(1)=\displaystyle {f{{\left({1}\right)}}}=  
f(2)=\displaystyle {f{{\left({2}\right)}}}=  

License