4x^2+21+20=0

Simple and best practice solution for 4x^2+21+20=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 4x^2+21+20=0 equation:


Simplifying
4x2 + 21 + 20 = 0

Reorder the terms:
21 + 20 + 4x2 = 0

Combine like terms: 21 + 20 = 41
41 + 4x2 = 0

Solving
41 + 4x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-41' to each side of the equation.
41 + -41 + 4x2 = 0 + -41

Combine like terms: 41 + -41 = 0
0 + 4x2 = 0 + -41
4x2 = 0 + -41

Combine like terms: 0 + -41 = -41
4x2 = -41

Divide each side by '4'.
x2 = -10.25

Simplifying
x2 = -10.25

Reorder the terms:
10.25 + x2 = -10.25 + 10.25

Combine like terms: -10.25 + 10.25 = 0.00
10.25 + x2 = 0.00

The solution to this equation could not be determined.

See similar equations:

| -23-5x=2x-2 | | -23+x=x+26 | | X^2+10x+24=52 | | x(x-4)(x+5)=0 | | 3+2c=9 | | 3x^3+6x^2+9x=0 | | -12x+12=-2x-78 | | 140-6x=4x+10 | | X^2+10x+24=50 | | 5(x-3)=2x+30 | | 4x-12=2x | | -8x+18=-5x | | 3n+9=90 | | 9x+11=6x-1 | | 6x+12=-128-8x | | y-33=5 | | 10x+30=4x | | 8x^2+32x=0 | | C^2-c-3=0 | | 0.8333333+0.2t=0.666666 | | -51-2x=5-9x | | 2-3(x-4)=8 | | 92-6x=8x+22 | | 4x+14=95-5x | | 0.7x-3.5=0.7 | | 12x^2+28x-24=0 | | 4x+14=95-5 | | 4x+1=4(x+9) | | 7x-3=4x+15 | | -3y-32=5y+16 | | x^3-1.5x^2=0 | | 5x+3=-3+3x+12 |

Equations solver categories