Algebra II

posted by .

When asked to solve the rational equation 11/2x^2+x-15=5/2x-5-x/x+3

a student multiplied both sides of the equation by the expression (2x2+x−15)(2x−5)(x+3).
Was this the best thing for the student to do? If not, what should the student have done?

  • Algebra II -

    no, since 2x^2+x-15 = (2x-5)(x+3)
    Just multiply both sides by (2x-5)(x+3)

    The thing to watch out for is to be sure to note that 5/2 and -3 must be excluded from the domain.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra 1

    Each student will be assigned a variable(mine being C) the student is to create a creature to represent that variable. The student must make 10 creatures for the variable. Then the student must make 10 additional creatures to represent …
  2. Pre-Algebra

    a student solved the equation x/4 +5=1 without showing all the work. the student's solution is incorrect. what error did the student make?
  3. ALGEBRA

    Bill is solving the equation 26x−21(6x+51)=40(11x+139). The following shows the steps he has used so far to solve the equation. Step1:26x−21(6x)−21(51)=40(11x)+40(139) Step2:26x−126x−1071=440x+5560 Which …
  4. Algebra

    Select all the statements that can be used as steps to solve the equation 6[4(2x−1)]=80−8. Subtract 8 from 80. Combine 80 and 6. Multiply 2x and -1 by 4. Subtract 1 from both sides of the equation. Add 4 to both sides of …
  5. ALGEBRA

    Select all the statements that can be used as steps to solve the equation 6[4(2x−1)]=80−8. Subtract 8 from 80. Combine 80 and 6. Multiply 2x and -1 by 4. Subtract 1 from both sides of the equation. Add 4 to both sides of …
  6. Math - Check My Answers, Please

    Please help me by checking the following answers for me. 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work shown?
  7. Math - Please Check My Answers

    Please help me by checking the following answers for me(There are 3 problems that I need someone to check). 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the …
  8. Math - Please Help Check My Answer

    Please help me with the following question: A student attempts to solve for c in the equation below. Which statement best applies to the work shown below?
  9. math help pls pls

    Maya had $27. She spent all the money on buying 3 burgers for $x each and 2 sandwiches for $y each. If Maya had bought 2 burgers and 1 sandwich, she would have been left with $11. A student concluded that the price of each burger is …
  10. math

    Elimination was used to solve a system of equations. One of the intermediate steps led to the equation 9x=27 . Which of the following systems could have led to this equation?

More Similar Questions