ronghe SG a) 3x^3-16x^2-37x+14 =0solve. 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
wee_ws SG 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