x^4+3x^2+7=0

Simple and best practice solution for x^4+3x^2+7=0 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 x^4+3x^2+7=0 equation:


Simplifying
x4 + 3x2 + 7 = 0

Reorder the terms:
7 + 3x2 + x4 = 0

Solving
7 + 3x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 3x2 + -7 + x4 = 0 + -7

Reorder the terms:
7 + -7 + 3x2 + x4 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 3x2 + x4 = 0 + -7
3x2 + x4 = 0 + -7

Combine like terms: 0 + -7 = -7
3x2 + x4 = -7

The x term is 3x2.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x2 + 2.25 + x4 = -7 + 2.25

Reorder the terms:
2.25 + 3x2 + x4 = -7 + 2.25

Combine like terms: -7 + 2.25 = -4.75
2.25 + 3x2 + x4 = -4.75

Factor a perfect square on the left side:
(x2 + 1.5)(x2 + 1.5) = -4.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| s^4+s^3+3s^2+2s+5=0 | | 0.15*7= | | 300000000/20000000*100= | | =24-24e | | 300000000/20000000= | | X-7*5=x+2*6 | | 220.70=(32.50+3.40+5.90)x | | X+(3x+8)=12 | | 12x+22=4x+222 | | 7x+1=5(1-2x) | | 56-3x=7-10x | | -16t^2+18t+24=0 | | 2600cm=(2x-6)m+(c+3)m | | 2y=15-4x | | X^4+6x^3-x^2-24x+16=0 | | 3x^2y^2=0 | | x*x-2x[1+3m]+7[2+3m]=0 | | 16t^2+18t+24=0 | | 4x^3-12x=00 | | X^2+4x=3x^2+4x+2 | | (x-50x/3)^2 | | 700x(45x*23)=0 | | (X-1)(X-3)(X-4)= | | 2x^3-5x^2-2x+4=0 | | 15s=3s | | 10y=11x-6 | | 2-5+7*6=x | | 3(x-(1))+5(x-(1))(x-(3))+(x-(1))(x-(3))(x-(4))= | | y=28-2x | | 3-12*4=x/4 | | 4y/3=2y/8 | | 6s+39=207 |

Equations solver categories