success254:
tu kno more on dis question,go and read more on polynomial.by factor theorem,subt x=-1 int d cubic eqn.it w giv u 0.so,x+1 is a factor of d cub eqn. divide d eqn by x+1(divn of polynomial),it gives x2-2x-2,solve dis quad. eqn.(by formula method)it will give u d answer wit u

success254:
tu kno more on dis question,go and read more on polynomial.by factor theorem,subt x=-1 int d cubic eqn.it w giv u 0.so,x+1 is a factor of d cub eqn. divide d eqn by x+1(divn of polynomial),it gives x2-2x-2,solve dis quad. eqn.(by formula method)it will give u d answer wit u

icecalm:
x=–1 gave me –3

Umartins1:
Here it is.

ugonna1054:
very easy

Umartins1:


I wonder what made it difficult for the guy.

ugonna1054:
Baba,evry1 is not lyk u nau .....prbably d degree of d polynomial (to d power 3) makde it look hard...

icecalm:
success254 and umartins nice one, it has been long I did maths, probably the reason for calling it quadratic instead of polynomial, X=–1 gave 0 I misplaced it wrongly the other day. but after a long struggle I finally get the stupid math.


here is what I did;
X ³ –X ² –4X –2=0

X ³ –X ² –X +1=3X+3

(X–1)²(X+1)=3(X+1)

Divide both sides by (X+1)


(X–1)²=3

X–1=√3

X=1±√3





X=1–√3 or 1+√3
the manipulation no be here . kai I need to buy a maths textbook

ugonna1054:
this is illegal!!

icecalm:
anything is possible in math, if there is no manipulation math will be less fun.

Umartins1:


The manipulation is un-Mathematical.

Lmoa, make una dey there they solve follow-pattern till full scape paper full, me I Don solve my own at least is no doubt that no figure came from an outside world.