Friday

August 29, 2014

August 29, 2014

Posted by **chirag** on Tuesday, February 12, 2013 at 9:41am.

- maths -
**Steve**, Tuesday, February 12, 2013 at 10:15amsince (x-3)(x^2+3x+9) = x^3 - 3^3

x^3 - 3^3 = 0

x^3 = 27

- WoW at Steve - maths -
**Reiny**, Tuesday, February 12, 2013 at 11:52amWhat a great way to do this question.

Did you see the round-about way I used ??

http://www.jiskha.com/display.cgi?id=1360597831

I was even thinking of using DeMoivre's theorem.

- WoW at Reiny - maths -
**Steve**, Tuesday, February 12, 2013 at 4:07pmI was going to show an alternative direct solution, but when I saw where it was headed, I blew it off.

Can't believe you

(a) slogged through it all

(b) got it right!

**Related Questions**

maths - N is an even 3-digit number such that the last 3 digits of N*N are N ...

Maths question - (a) find the largest four digit number which has a total of ...

Maths - (a) find d largest four digit number which has a total of exactly 3 ...

maths - Ramesh buys 150 shares of par value ` 10/- each of a company which pays ...

maths - find value of p such that the equation (x+1)(x+2)=p

Maths - Find the two digit number such that if you treble it and you take away ...

maths - If a and b are coprime positive integers such that 1/2+1/3+1/4+1/5=a/b, ...

maths!!!!!!!!! - If a and b are coprime positive integers such that 1/2+1/3+1/4+...

maths - find the place value and value of the 5 in the number 643.758

Maths - (a) find the largest four digit number which has a total of exactly 3 ...