pre-calculus

posted by .

solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression.

In square root of x+2=2 (If I try to make the square root sign it will not come out right so I wrote it out instead)

What is the exact solution.

A. The solution set is {?}

B. There are infinitely many solutions?

c. There are no solutions?

  • pre-calculus -

    sqrt(x+2) = 2. sqrt means Square Root.
    Square both sides:
    x + 2 = 4
    X = 2.

  • pre-calculus -

    Correction:
    Ln sqrt(x+2) = 2.

    Exponential form:
    sqrt(x+2) = e^2
    Square both sides:
    x + 2 = e^4
    X = e^4 - 2.

    X = 54.60 - 2 = 52.60.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Calculus

    Find the functions a) f o g, b) g o f, c) f o f, d) g o g, and their domains. f(x)= square root of x, g(x)= cube root of 1-x These are my answers, but I am not sure about them and I only figured out one domain... that is the part that …
  2. pre-calculus

    solve the following logarithmic equation. Be sure to reject any value of x that is not in thedomain of the orginal logarithmic expression. Give the exact answer. log3(x+8)=4 The three actually drops down a little below the g. Can someone …
  3. pre-calculus

    solve the following logarithmic equation. be sure to reject any value of x that is not in the domain of the original logarithmic expression. give the exact answer. then, use the calculator to obtain a decimal appromiation, correct …
  4. calculus

    solve the following logarithmic equation. Be sure to reject any value of x that is not in the domain of orginal expression. then in the solution set round to two decimals places. Inx=8 I get e^8 But am having a hard time with rounding …
  5. calculus

    solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=2 what is the exact solution?
  6. calculus

    solve the logarithmic equation. Be sure to reject any value of x that is not in the domain. In square root x+7=1 x= ?
  7. calculus

    solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=1 I get this far and then get stuck, can you help me?
  8. Algebra

    Rationalize each expression by building perfect nth root factors for each denominator. Assume all variables represent positive quantities. I don’t understand how to compute these. Also I don’t have the square root sign so I typed …
  9. Math simplifying mixed radicals

    Please help me simplify these following mixed radicals:: and show me how you did it cause I need to learn : I don't know how to type a square root sign so I just wrote square root and the numbers infront of the square root are supposed …
  10. college pre-calculus

    simplify: square root (4/3)-square root (3/4) A. 2-sqaure root(3)/2 square root (3) B. square root (7/12) C. square root (3)/6 D. 2/square root (3) which answer?

More Similar Questions