a) 3x^3-16x^2-37x+14 =0
solve.
b) Hence solve
3x^3+16x^2-37x-14 =0
i can solve by brute force but the "hence solve" part i have no clue
Hi,
"Hence" typically requires the student to make use of the previous part and make a little modification. In this case, consider a suitable substitution, like replace x by -x and see what you get.
Thanks!
Cheers,
Wen Shih
thanks a lot , I got it. Btw wee_ws, are you a teacher?
Originally posted by ronghe:thanks a lot , I got it. Btw wee_ws, are you a teacher?
Hi,
Yes :)
Cheers,
Wen Shih