OpenStudy (anonymous):

Grouping Method! 5x^2-25x-60

5 years ago
OpenStudy (anonymous):

My teacher only wants the grouping method... thats the problem.

5 years ago
OpenStudy (anonymous):

Yes, but it doesnt fit for this equation... Ill post it.

5 years ago
OpenStudy (anonymous):

http://www.jamesbrennan.org/algebra/polynomials/factoring_by_grouping_.htm

5 years ago
OpenStudy (anonymous):

After Grouping : \[[x -( 5-\sqrt{73}/2)][x -(5+\sqrt{73})/2] = 0 \] But this method is inconvenient for this question!

5 years ago
OpenStudy (anonymous):

Thank You!

5 years ago
OpenStudy (anonymous):

welcome

5 years ago
OpenStudy (anonymous):

You cannot use grouping method for this. You can use it only if it +60 not -60.

5 years ago
OpenStudy (anonymous):

Use Feynman Algorithm : Write down the problem,Try real hard,Write down the solution

5 years ago