If f(x)=x^2-5x+7evaluate f(2)+f(-1)-f(1/3)
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Answer:49/9=7^2/3^2
Step-by-step explanation:f (2)=x^2-5x+7=(2)^2-5 (2)+7
=4-10+7=11-10=1
f (-1)= x^2-5x+7= (-1)^2-5 (-1)+7=1+5+7=13
f (1/3)=x^2-5x+7=(1/3 )^2-5 (1/3)+7=1/9-5/3+7=1-15+63/9=64-15/9
=49/9=7^2/3^2
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