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Calculus

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Find the real solutions of this equation. If there is no real solution enter NONE.

(3X+1)^1/2=8

Is the answer 2.93

  • Calculus - ,

    Is this calculus or simple reasoning?

    If the latter:

    (3x+1)^1/2=8
    square both sides
    =3x+1=64
    =3x=63
    x=63/3
    x=21

  • Calculus - ,

    Use a graph of f or some other method to determine what, if any, value to assign to f(a) to make f continuous at x = a. HINT [See Example 2.] (If there is no such value, enter NONE.)
    f(x) =
    x^2 + 11x + 18/x + 2
    ; a = −2

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