Thursday
July 31, 2014

Homework Help: Algebra

Posted by Katie on Thursday, October 8, 2009 at 6:33pm.

I am solving X^4-3x^2+2=0 I factored it to be (x^2-2)(x+1)(x-1) as my book suggested. But why is it three sets of parentheses? How do you know that it's supposed to be three sets of parentheses in opposed to two or four? And how come one of the answers according to my book is plus or minus the square root of two? I see why it might be plus the sq. rt. of two, but I don't get how it could be minus. Thank you for your help clearing this up!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Alegbra - Simplify the expression (3y+1)^2 + (2y-4)^2 I would start by expanding...
Algebra - I am solving sytems of equations algrbraically. I have tried several ...
Algebra - (4x^3-9x+8x^2-18)/(x+2)-use synthetic division to divide. I set it up ...
Algebra - I have to figure out how x^3+216=0 is factored, and what potential ...
Algebra Zero Product Rule - I'm working with the zero product rule and I've ...
Pre-Algebra - Scatter plots are used to look for a pattern of association, or ...
Algebra - 8(a-b)2+14(a-b)-15 Is 8(a-b)2 supposed to mean 8(a-b)^2? If so, what ...
Pre-Algebra - Complete the sentence below. Scatter plots are used to look for a ...
math - Factor 2x+13x+40 I thought with this sort of problem you are supposed to...
Algebra - Could someone please help me find x in this problem and explain how ...

Search
Members