posted by .

1) 5/12+7/18-5/6
2) 3x/x-1-1/x=_____/x^2-1x
3) x+1/x^2-5x+6-3x+11/x^2-x-6=

5) 3x^2+2x-2
6) x^2-3x-9

4-5 with formula

please help!

  • Pre-calculus -

    for the fractions, some parentheses or at least spaces would help designate what the factors are

    2x^2-3x-1 : x=(3±√17)/4
    3x^2+2x-2 : x=(-2±√28)/6 = (-1±√7)/3
    x^2-3x-9 : x=(3±√45)/2 = (3±3√5)/2

    Just plug in the numbers. What's the problem?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Calculus

    In calculus, the sum of an infinite geometric series whose first term is 1/20 is given by the complex fraction 1/20 _____ 1-r where r is the common ratio between the terms. Simplify this expression.
  2. Precalculus(NEED HELP ASAP PLEASE!!)

    PLEASE HELP!! csc(theta)= -3/2 3pi/2 < theta < 2pi Find: sin(theta)= _____ ?
  3. Pre-Calculus(Help)

    Partial Fraction of the Rational Expression: x^2+x+8/x^3+x
  4. Pre-calculus need help!!

    Quadratic Formula 1.) x+6/x=-7 2.) 4x/x+4 + 3/x-1 = 15/x^2+3x-4 3.) x+3/x - 2/x+3 = 6/x^2+3x formula: -B+ sqrt B^2 + (-4)(a)(c)/2a f u only wanted to use the formula it's not necessary though. please help me! it's going to pass tomorrow!! …
  5. Calculus Help Please

    let f(x)=(x-1)^2, g(x)=e^(-2x), and h(x)=1+ ln(1-2x) find linearization of f, g, and h at a=0 Lf(x)= Lg(x)= Lh(x)= graph f,g, and h, and their linear app. For which function is the linear app. best?
  6. pre calculus

    4+7i divided by 2 (problem is written as a fraction) 4+7i _________ 2
  7. Pre-Calculus

    suppose y is directly proportional to x. if y=6 when x=4, find the constant of proportionality and write the formula for y as function of x. Use your formula to find x when y=8.
  8. Spanish

    La Señora González es _____. Usted es _____. Pepito es _____. Carlos es _____. Marta es _____. Yo soy _____. Tú eres _____. Pedro es _____.
  9. pre calculus

    ea + bi = ea(cos b + i sin b) This formula gives rise to the equation eπi + 1 = 0. . Show how Euler’s formula can be used to derive this equation.
  10. Chemistry

    I'm not sure how to do these and when I looked it up, maybe there was a diff. vocab used. Please help! 1.) How do you do atom/ion inventory of : Cu3(PO4)2 A. _____ formula units Cu3(PO4)2 B. _____ atoms Cu C. _____ atoms P D. _____ …

More Similar Questions