I suspect a typo. Why not just say 2x^2+1?
At any rate, assuming things are correct as written, for any input, just substitute it for all the x's and evaluate for the output.
input: -2, output (-2)^2+(-2)^2+1 = 4+4+1 = 9
Tell what the output value is for the function machine for the given values.
x^2+x^2+1
a)5
b)9
c)-7
d)1/2
e)t
2 answers
the dunction machine is x2 and -1 and the output is 7 and -20