If f (x) =5x squared-4x+5,find the value of f (1)+f (-1)+f (0)
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f(x)=5x^2-4x+5
{put x=1}
f(1)=5-4+5
=6
{put x=(-1)}
f(-1)=5+4+5
=14
{put x=0}
f(0)=0+0+5
=5
f(1)+f(-1)+f(0)=6+14+5=25
{put x=1}
f(1)=5-4+5
=6
{put x=(-1)}
f(-1)=5+4+5
=14
{put x=0}
f(0)=0+0+5
=5
f(1)+f(-1)+f(0)=6+14+5=25
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