(12x^2+3x)-(8x^2-19)=

Simple and best practice solution for (12x^2+3x)-(8x^2-19)= 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 (12x^2+3x)-(8x^2-19)= equation: 


Simplifying
(12x2 + 3x) + -1(8x2 + -19) = 0

Reorder the terms:
(3x + 12x2) + -1(8x2 + -19) = 0

Remove parenthesis around (3x + 12x2)
3x + 12x2 + -1(8x2 + -19) = 0

Reorder the terms:
3x + 12x2 + -1(-19 + 8x2) = 0
3x + 12x2 + (-19 * -1 + 8x2 * -1) = 0
3x + 12x2 + (19 + -8x2) = 0

Reorder the terms:
19 + 3x + 12x2 + -8x2 = 0

Combine like terms: 12x2 + -8x2 = 4x2
19 + 3x + 4x2 = 0

Solving
19 + 3x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
4.75 + 0.75x + x2 = 0

Move the constant term to the right:

Add '-4.75' to each side of the equation.
4.75 + 0.75x + -4.75 + x2 = 0 + -4.75

Reorder the terms:
4.75 + -4.75 + 0.75x + x2 = 0 + -4.75

Combine like terms: 4.75 + -4.75 = 0.00
0.00 + 0.75x + x2 = 0 + -4.75
0.75x + x2 = 0 + -4.75

Combine like terms: 0 + -4.75 = -4.75
0.75x + x2 = -4.75

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = -4.75 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = -4.75 + 0.140625

Combine like terms: -4.75 + 0.140625 = -4.609375
0.140625 + 0.75x + x2 = -4.609375

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = -4.609375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6(mxn)=(6xm)n | | 5=3z+4 | | 62x+25=450x+25 | | 62+25x=450+25x | | 6z+35=-6z+-35 | | 8(x+1)+4=-9(x-8)-5 | | 2(5m-3)=4m+30 | | 6x-2=2x-6 | | y=-7(6)+8 | | 5x-3x-8= | | 4-2(5x+5)= | | 26+x=x+23+12-(14+x) | | 3-2(8x+4)= | | f(3)=21x+11 | | x(6x+7)=3 | | 2x^2-4+3=x^2-2x+11 | | 15-3n=12 | | -11f=7(1-2f)5 | | y=20-0.06x+0.0002x^2 | | 4-(7*x)=59 | | 4-7*x=59 | | 11-(x+3)= | | 300(14-x)+800x=6.200 | | -5(r+2)=-81 | | 4(x+2)+6= | | 12-5*x=-33 | | -11.6h+11.55=-12.7h | | -9.1c+19.02=-14.3c+11.74 | | 21x-8=5(4x+5)-17 | | -5(r+2)=81 | | -1/2q-4=9 | | 20+4y=40 |

Equations solver categories