Question

If f(x) = x² – 5x + 7, evaluate f(2) - f(-1) +(f1/3).​

Answer 1

f(x)=x²-5x+7

f(2)=(2)²-5(2)+7

=4-10+7

=1

f(-1)=(-1)²-5(-1)+7

=1+5+7

=13

f(1/3)=(1/3)²-5×1/3+7

=1/9-5/3+7

=44/9

f(2) - f(-1) +(f1/3).

=>1-13+44/9

=>-12+44/9

=>64/9