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Math (Algebra)

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If f(x) is a polynomial with real coefficients such that f(7+5i) = 39 + 13i, then f(7−5i) = a + bi. What is the value of a+b?

  • Math (Algebra) -

    i would just give you the hint....f(x)=x^2-14x+113.......now put the value x=7-5i.....you would get yourself...

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