4x^2-19x-3=0

Simple and best practice solution for 4x^2-19x-3=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 4x^2-19x-3=0 equation:


Simplifying
4x2 + -19x + -3 = 0

Reorder the terms:
-3 + -19x + 4x2 = 0

Solving
-3 + -19x + 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'.
-0.75 + -4.75x + x2 = 0

Move the constant term to the right:

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

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

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

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

The x term is -4.75x.  Take half its coefficient (-2.375).
Square it (5.640625) and add it to both sides.

Add '5.640625' to each side of the equation.
-4.75x + 5.640625 + x2 = 0.75 + 5.640625

Reorder the terms:
5.640625 + -4.75x + x2 = 0.75 + 5.640625

Combine like terms: 0.75 + 5.640625 = 6.390625
5.640625 + -4.75x + x2 = 6.390625

Factor a perfect square on the left side:
(x + -2.375)(x + -2.375) = 6.390625

Calculate the square root of the right side: 2.527968552

Break this problem into two subproblems by setting 
(x + -2.375) equal to 2.527968552 and -2.527968552.

Subproblem 1

x + -2.375 = 2.527968552 Simplifying x + -2.375 = 2.527968552 Reorder the terms: -2.375 + x = 2.527968552 Solving -2.375 + x = 2.527968552 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = 2.527968552 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = 2.527968552 + 2.375 x = 2.527968552 + 2.375 Combine like terms: 2.527968552 + 2.375 = 4.902968552 x = 4.902968552 Simplifying x = 4.902968552

Subproblem 2

x + -2.375 = -2.527968552 Simplifying x + -2.375 = -2.527968552 Reorder the terms: -2.375 + x = -2.527968552 Solving -2.375 + x = -2.527968552 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = -2.527968552 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = -2.527968552 + 2.375 x = -2.527968552 + 2.375 Combine like terms: -2.527968552 + 2.375 = -0.152968552 x = -0.152968552 Simplifying x = -0.152968552

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.902968552, -0.152968552}

See similar equations:

| 5x-12+3x-14=180 | | -15/16+3/16 | | 28=x/9+5 | | 2(5s+7)-4s=3(2s+4)-15 | | -2(3x-9)+7=-6x+25 | | 7x+12+3x-2=180 | | 1=2p+20 | | 1/2x+1/3y=2 | | 0.06(y-4)+0.20y=0.14y-0.6 | | x+2log(2x^2+x)=1 | | 6.6=-1+x | | log(2x^2+x)=1 | | 5/14*1/3*7/10= | | X+2+2x-8=180 | | logx+2(2x^2+x)=1 | | x^4-x^3y+x^2y^2=1 | | 6x-3+4x-7=180 | | 2x-7-3x+1=-6+5x | | A/b^2*b^3/a^3 | | 2x^2+x=x+2 | | 3y+8+5y+4=180 | | 8x-7x-11=180 | | 8/5+5m/4=77/20 | | -3m+3(x+6)= | | 19-13p=-17p-6 | | -5/12*-84/15 | | b^2+8b+18=0 | | x-6x/100=3500 | | 2x-4x+8=2 | | -3/5/9 | | 7x-3=-2x-1 | | 8x+1=6x+5 |

Equations solver categories