-b^4+b^2=2

Simple and best practice solution for -b^4+b^2=2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for -b^4+b^2=2 equation:


Simplifying
-1b4 + b2 = 2

Reorder the terms:
b2 + -1b4 = 2

Solving
b2 + -1b4 = 2

Solving for variable 'b'.

Reorder the terms:
-2 + b2 + -1b4 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + b2 + -1b4 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
2 + -1b2 + b4 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -1b2 + -2 + b4 = 0 + -2

Reorder the terms:
2 + -2 + -1b2 + b4 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1b2 + b4 = 0 + -2
-1b2 + b4 = 0 + -2

Combine like terms: 0 + -2 = -2
-1b2 + b4 = -2

The b term is b2.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1b2 + 0.25 + b4 = -2 + 0.25

Reorder the terms:
0.25 + -1b2 + b4 = -2 + 0.25

Combine like terms: -2 + 0.25 = -1.75
0.25 + -1b2 + b4 = -1.75

Factor a perfect square on the left side:
(b2 + 0.5)(b2 + 0.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 180-x+180-2a+180-2b+180-x-40=360 | | 27+29=7x | | (2x+5t)-3t= | | 12f+20=10f+22 | | -3(6y-5)-y=-4(y-2) | | 28=9u-8+5u | | 3x=138 | | 6e+9=3e+12 | | (4x+1)*3x=27 | | 2x-7y-7z=-9 | | 2d+30=d+12 | | a^4-2a^2b+b^2=0 | | 2+2a-6=6 | | 10x+5=3(3x+1) | | 4c+16=3c-12 | | f(4)=8x+11 | | 8x-(3+4x)= | | 2x+111=8x-9 | | -112=7(8p-8) | | 3b-12=2b+2 | | -1.7(2z+1)-4.9z= | | 2(x+1)+3(x+2)=5x+4 | | 7x-3x+6=x-5+11 | | 2a+6=a-2 | | -3.4(-5m+7)+3.7m= | | 24=3a-6a | | -(x-3)-2-(x-4)=7 | | 0.6t=0.9+0.8t | | 2a+0.5=4.5 | | 4x+13=11x-8 | | 4x-7x+5=x-3+8 | | 9x-(3x+7)=2x-39 |

Equations solver categories