(2x^2)+4x+5=0

Simple and best practice solution for (2x^2)+4x+5=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 (2x^2)+4x+5=0 equation:


Simplifying
(2x2) + 4x + 5 = 0

Reorder the terms:
5 + 4x + (2x2) = 0

Solving
5 + 4x + (2x2) = 0

Solving for variable 'x'.

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

Divide each side by '2'.
2.5 + 2x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + 2x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + 2x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + 2x + x2 = 0 + -2.5
2x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
2x + x2 = -2.5

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = -2.5 + 1

Reorder the terms:
1 + 2x + x2 = -2.5 + 1

Combine like terms: -2.5 + 1 = -1.5
1 + 2x + x2 = -1.5

Factor a perfect square on the left side:
((x) + 1)((x) + 1) = -1.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x+3y+5z=20 | | 2(p+10)=2p+12 | | 3a-27=8a-42 | | x^2-16x+64=(x-8)(x-8) | | x^2+20x+64=(x+16)(x+4) | | x^2-64=(x+8)(x-8) | | B(x)=60-0.50x | | 6.05=2.25+.20(m-1) | | z^2=-0.25 | | z^2=0.25 | | 2/8n+4/n-4=-6.66 | | 3y-13=11whatisy | | x-3,7=4,3 | | 5(a-4)=2(a+2) | | 3x^2-40x+150=0 | | 4(x+3)=7x-6 | | 24k^2+184k+240=0 | | -10(y-4)=15 | | 6x^2-84x+240=0 | | 6x+18=14x+70 | | 6x+18=14x-17 | | y=-4x^2+16x-10 | | 3(3x-5)=45 | | x^2-14xy+24y^2=0 | | 6x^2-2x-108=0 | | Y^2dx+(x^2+3xy+4y^2)dy=0 | | -[9x+(9x+10)]=4-(8x+3) | | x+(x*0.08)=36206 | | 8h-16=48 | | 2(8-3t)-4t=10 | | T=26x^2+821x+15774 | | logx+2=0 |

Equations solver categories