10x^2+x-10=-20

Simple and best practice solution for 10x^2+x-10=-20 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 10x^2+x-10=-20 equation:


Simplifying
10x2 + x + -10 = -20

Reorder the terms:
-10 + x + 10x2 = -20

Solving
-10 + x + 10x2 = -20

Solving for variable 'x'.

Reorder the terms:
-10 + 20 + x + 10x2 = -20 + 20

Combine like terms: -10 + 20 = 10
10 + x + 10x2 = -20 + 20

Combine like terms: -20 + 20 = 0
10 + x + 10x2 = 0

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

Divide each side by '10'.
1 + 0.1x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 0.1x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + 0.1x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 0.1x + x2 = 0 + -1
0.1x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
0.1x + x2 = -1

The x term is x.  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.
0.1x + 0.25 + x2 = -1 + 0.25

Reorder the terms:
0.25 + 0.1x + x2 = -1 + 0.25

Combine like terms: -1 + 0.25 = -0.75
0.25 + 0.1x + x2 = -0.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -0.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2(-n+8)-7n=88 | | y=10+4 | | 65-x=2x-10 | | -15+(-8)= | | y=-9+4 | | 6x^2+19x-10=-20 | | y=9+4 | | -18+24= | | 2k-6+5k=1 | | -2+(-5)= | | 5.97=(3900d+1000)/((3d^2)+100) | | 4x+2y+7x+3= | | 3y-2+4y=16 | | 221=-4+5(-6x-3) | | 4-6w=3*0.5+w+.5 | | 5m^2+m+2=0 | | -61+(-28)= | | 1/68=x/1000 | | 3x+8=-8 | | -4b+5=3b+9 | | U/-9=4 | | -4b-5=3b | | 32=-6v-4 | | 7=9+x-7 | | T/3-4=0 | | -9a-1=170 | | 2y-5+10y=48 | | 10-0.4t=5.8 | | 4-5v=59 | | 3x^2+36x=-27 | | 28=18+r | | 1+6x=-71 |

Equations solver categories