Posted by Robo on Tuesday, May 31, 2011 at 1:39pm.
Solve by factoring.
2x^4 + x^2 = 1

Algebra  Rebecca, Tuesday, May 31, 2011 at 1:45pm
Follow these steps:
1.Move all terms to one side of the equation, usually the left, using addition or subtraction.
2.Factor the equation completely.
3.Set each factor equal to zero, and solve.
4.List each solution from Step 3 as a solution to the original equation.

Algebra  Robo, Tuesday, May 31, 2011 at 2:23pm
I understand that. Problem is that I am not getting the same answer as the book.
Sqrt 2/2 and  sqrt 2/2

Algebra  Mike, Tuesday, May 31, 2011 at 3:39pm
x= } 1/ã2

Algebra  MathMate, Tuesday, May 31, 2011 at 3:48pm
Substitute y=x²
2y²+y1=0
Solve to get
y=1 or y=1/2
if x²=1, x=±i
if x²=1/2, x=±(1/2)=±(√2)/2

Algebra  typo  MathMate, Tuesday, May 31, 2011 at 3:49pm
if x²=1/2, x=±√(1/2)=±(√2)/2

Algebra  algebra, Wednesday, June 1, 2011 at 6:51am
Thanks! got it.

Algebra  MathMate, Wednesday, June 1, 2011 at 8:08am
You're welcome!
Answer This Question
Related Questions
 Algebra  Solve the equation. Use factoring or the quadratic formula, whichever ...
 Algebra II  Need help please. Thank you. 1. Determine whether the function has ...
 Factoring  x2(squared)4x+4 I would factor this into (X  2)(X  2) If you don'...
 Pre algebra  How do I solve Quadratic equations by factoring? (for example how ...
 Algebra  Solving quardratic equations using factoring. 2X^2+2X4=0 The book ...
 Algebra  Solve by factoring a^26a+9=0
 algebra 2  x^24x32=0 solve by factoring
 algebra  Solve by factoring: 6x^2 + x = 5
 algebra  Solve by factoring: 3x^2 + 2x  1 = 0
 algebra  solve by factoring 2a^23a=5
More Related Questions