Homework Help

If a^1/3 = 11 then find a^2 - 331a

user profile pic

nasirjam | Student, Grade 9 | Honors

Posted April 1, 2013 at 5:21 PM via web

dislike 0 like

If a^1/3 = 11 then find a^2 - 331a

1 Answer | Add Yours

user profile pic

justaguide | College Teacher | (Level 2) Distinguished Educator

Posted April 1, 2013 at 5:28 PM (Answer #1)

dislike 1 like

It is given that a^(1/3) = 11.

a^2 = a^(6/3) = (a^(1/3))^6 = 11^6 = 1771561

a = a^(3/3) = 11^3 = 1331

a^2 - 331a

= 1771561 - 331*1331

= 1771561 - 440561

= 1331000

The value of a^2 - 331*a = 1331000

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes