Math Olympiad | The Best Of Algebra | Depressed Cubic Equation |

In this video, we shall explore the solution of a very unique problem x^3+1/x^3 = 18 and we are to evaluate x^7+ 1/x^7.In proffering the solution, I had to use Algebraic identities and formulas such as the sum of cubes and the sum of squares upon when after using substitution, I was able to get a depressed cubic equation which Upon solving yielded an expression x+1/x then after squaring twice, we got an expression for x^4 + 1/x^4 and then multiply with the given equation led to the This video would be of great help for students preparing for competition especially math Olympiad and alike and those writing entrance examination to ivy League universities. #education #mathematics #algebra #school #education #mathstricks #maths #matholympiad #mathematics #entranceexam