x^2+5x+90=0

Simple and best practice solution for x^2+5x+90=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^2+5x+90=0 equation:


Simplifying
x2 + 5x + 90 = 0

Reorder the terms:
90 + 5x + x2 = 0

Solving
90 + 5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-90' to each side of the equation.
90 + 5x + -90 + x2 = 0 + -90

Reorder the terms:
90 + -90 + 5x + x2 = 0 + -90

Combine like terms: 90 + -90 = 0
0 + 5x + x2 = 0 + -90
5x + x2 = 0 + -90

Combine like terms: 0 + -90 = -90
5x + x2 = -90

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -90 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -90 + 6.25

Combine like terms: -90 + 6.25 = -83.75
6.25 + 5x + x2 = -83.75

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = -83.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4x+19-10x+11=390 | | 48+11x-5+9x-3=180 | | 6.646+v=-6.054 | | X^2-12x+54=9 | | 10x+8x+5+85=180 | | 0.5(2x+4)-2x=-5 | | 8*x-2=3*x-11 | | 8.3k=129.48 | | 4x-(9-3x)8x=1 | | 5x+2+134+6x=180 | | x-2*8=3x-11 | | 12x+13y=17 | | 5k-4-k=3k-6 | | 5x-45=(20) | | -6+m=-24 | | 24x^6-18x^5-15x^4=0 | | x+52+75+67+x=180 | | 6x-1+7x= | | 6+f=70 | | x+51+x+61+80=180 | | 15+n=1 | | 11m=-209 | | 16x^2+66x+35=0 | | 20.8-90= | | -8+x^2+(-6x)=0 | | -16+x-6x=6x-7x | | 125x=-2x | | 160x^2+340x+150=0 | | 4(3x-4)+2x=-(7x+3) | | v+4=4+v | | -3k-24=-2-3(7+k) | | 20x^3+62x^2-28x=0 |

Equations solver categories