10x^2+5x=-4

Simple and best practice solution for 10x^2+5x=-4 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+5x=-4 equation:


Simplifying
10x2 + 5x = -4

Reorder the terms:
5x + 10x2 = -4

Solving
5x + 10x2 = -4

Solving for variable 'x'.

Reorder the terms:
4 + 5x + 10x2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + 5x + 10x2 = 0

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

Divide each side by '10'.
0.4 + 0.5x + x2 = 0

Move the constant term to the right:

Add '-0.4' to each side of the equation.
0.4 + 0.5x + -0.4 + x2 = 0 + -0.4

Reorder the terms:
0.4 + -0.4 + 0.5x + x2 = 0 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 0.5x + x2 = 0 + -0.4
0.5x + x2 = 0 + -0.4

Combine like terms: 0 + -0.4 = -0.4
0.5x + x2 = -0.4

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = -0.4 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = -0.4 + 0.0625

Combine like terms: -0.4 + 0.0625 = -0.3375
0.0625 + 0.5x + x2 = -0.3375

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = -0.3375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x^2-x-.01=0 | | 6(x-4)=84 | | 8.7+x=9.6 | | 5-(x-3)=x-(3x-6) | | 5m^2-7m=-8 | | 2r^2-6r=-8 | | (12+i)+(7+4i)= | | y+6.1=19.5 | | .28x=100.8 | | 5n^2+n=-6 | | 0.58=3r+0.15 | | 2(10x)=15x+6.5 | | 4x^2-16x=9 | | 0.5t+8=5 | | 39-4x=11+10x | | (3i)(5i)(-2i)= | | 1.5x-8=2.5 | | (3i)(5i)(-21i)= | | 0.125x+0.6=-1.2 | | 18+7(18+2x)+7= | | 12(5280)= | | a^2-18a-17=2a | | 0.5x-12=13 | | 5x=24-4 | | 2s^3+s^2-25s+12=0 | | 0.375x-8=4 | | 28=13.8x+262.6 | | -0.7+0.25x=0.4 | | 6x-1y-6z=0.15 | | 2(x+2)=40 | | 2(x+8)=3 | | 4x-x^2=y |

Equations solver categories