First rewrite the quadratic function in standard form by completing the square, then find any x-intercepts and any y-intercepts.f(x) = x2 + 18x + 71Give your answers in exact form.

A. x-intercepts: -18 -  and -18 + ; y-intercept: -71
B. x-intercepts: 9 + ; y-intercept: -71
C. x-intercepts: 9 -  and 9 + ; y-intercept: 71
D. x-intercepts: -9 -  and -9 + ; y-intercept: 71


Answer: D

Mathematics

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