check math

Here are my answers. Can you check if I got the right answers? Thank you!

(x-4)/(x^2-3x-4) = x+1
(x^3-8)/(x-2)=x^2+2x+4
(5-x)/(x^2-25)=-x-5
(x^2-4x-32)/(x^2-16)=(x-8)/(x-4)

first one should be 1/(x+1)

second is good
third: -1/(x+5)
4th is ok

Have you not been taught to place restrictions after your answers for variable denominators?

asked by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math check answers please

    Sorry to bug again but can someone check my answers please thank you. 1. Simplify the expression 3w-10w A. 13w B. -7w C. -7 D. 7w 2. Y+2y+3z A. 2y+3z B. 3y+3z C. 2y^2+3z D. 6yz 3. 6r+r-5r A. 2r B. 1r+r C. 0r D. 7r-5r 4. 5x+2(x+6)
  2. Math HELP

    I have my answers at the bottom but please do these questions so I can check my answers. Check my answers as well. Subtract these fractions. !Reduce them! 1. 5/7 - 3/10= 2. 11/18 - 5/12= 3. 1/3 - 1/6= 4. 7/12 - 1/16= 5. 7/8 -
  3. English

    Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. Are you finished? Then, I'll check the answers. Look at the answers on the blackboard. Check your
  4. English

    Formative Test Now, let's check how well you can use the expressions you've learned. I will distribute handouts. You have to solve the problems. You will have 5 minutes. Are you finished? Then, I'll write down the answers. Look at
  5. Calculus (pleas help I really need to check this)

    Assume that each of the follwing functions gives the position of an object at time t. Find the velocities indicated by setting up and evaluating a limt algebraically. (a) s(t) = 3t^2, Find v(-1). (b) s(t) = 1/t , Find v(2). (c)
  6. @ Mr. Falcon

    You posted 40 questions and no answers. You wrote "PLZ HELP ASP usa test prep " The best way to prepare for a test is to study your text!! We'll be glad to HELP you if you post no more than five questions and your answers. We'll
  7. English

    You are going to take a quiz. I'll distribute exam papers. You should write down the answers. Fill in the blanks with suitable expressions. Take one and pass the others to the other students. First write down your number and name
  8. Math

    Can someone please check my answers below for accurateness? The instructions are: Differentiate and simplify. 1) y=(2x^2+3x-1)(3x^2-5x-3) y'=(4x+3)(3x^2-5x-3)+(2x^2+3x-1)(6x-5) 2) y=(5x^2+3x-1)(3x^2-5x-3)
  9. other Quadratic equations

    The problem is 7x^3-x+1=x^3+3x^2+x. Find all real answers. I came upwith two answers 3x^2=1 and 2x=1/2. The first answer just does not look right. I must be forgeting something! You can check them by putting in x=1/4 (the second
  10. To Sam: Penn Foster answers

    Please do not post any more answers. Jiskha is not a repository for any exam answers. In addition, we have no idea what the questions are. If you want to post a couple of your exam questions along with your answers, we'll be glad

More Similar Questions