Tuesday

September 2, 2014

September 2, 2014

Posted by **rinku** on Tuesday, April 9, 2013 at 1:31pm.

- algebra -
**Reiny**, Tuesday, April 9, 2013 at 2:43pmsimplified to

x^3 + 7x^2 - 21x - 27 = 0

try: x = ±1, ±3, ±7

on the second try, I got x=-1 to work

so (x+1) is a factor

by synthetic division I found

x^3 + 7x^2 - 21x - 27 = (x+1)(x^2 + 6x - 27) = 0

(x+1)(x+9)(x-3) = 0

x = -1, -9, and 3

**Answer this Question**

**Related Questions**

algerbra - 7(3x+4)=8(2x+5)+13 how would I start a equation like this would it be...

Algerbra - how do you solve 7(3x+4)=8(2x+5)+13 expand the parenthesis...I will ...

music urgent!!!!!!!!!!!! - i need help with annotating a piece of idian ...

algebra - Find integer bounds for the roots of the following equation: 3x^5-11x^...

MATH - solve 1-(2/x)=2/(x+2) Express your answer in simplest radical form. What ...

math - Factor: x^3 - 3/4x - 1/4 The answer is: (x - 1)(x + 1/2)^2 How do I learn...

algebra 2 - Factor completely with respect to the integers. 1. 9x^2 - 4 2. x^3...

math - use the numbers 1,2,3,4,5,6,7,8 and 9 one time make a true math equation...

algebra - Set the equations equal to each other so you can determine when the ...

Chemistry-help - I am rather confused about writing ionic equations. 1) SOLID ...