Ответ:
f(-2)=1-2•(-2)=1+4=5
f(0)= 1-2•0= 1
f(5)=1-2•5=-9
f(a+1)=1-2•(a+1)=1-2a-2=-1-2a
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Ответ:
f(-2)=1-2•(-2)=1+4=5
f(0)= 1-2•0= 1
f(5)=1-2•5=-9
f(a+1)=1-2•(a+1)=1-2a-2=-1-2a