4x^2+17x-124=0

Simple and best practice solution for 4x^2+17x-124=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+17x-124=0 equation:


Simplifying
4x2 + 17x + -124 = 0

Reorder the terms:
-124 + 17x + 4x2 = 0

Solving
-124 + 17x + 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'.
-31 + 4.25x + x2 = 0

Move the constant term to the right:

Add '31' to each side of the equation.
-31 + 4.25x + 31 + x2 = 0 + 31

Reorder the terms:
-31 + 31 + 4.25x + x2 = 0 + 31

Combine like terms: -31 + 31 = 0
0 + 4.25x + x2 = 0 + 31
4.25x + x2 = 0 + 31

Combine like terms: 0 + 31 = 31
4.25x + x2 = 31

The x term is 4.25x.  Take half its coefficient (2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
4.25x + 4.515625 + x2 = 31 + 4.515625

Reorder the terms:
4.515625 + 4.25x + x2 = 31 + 4.515625

Combine like terms: 31 + 4.515625 = 35.515625
4.515625 + 4.25x + x2 = 35.515625

Factor a perfect square on the left side:
(x + 2.125)(x + 2.125) = 35.515625

Calculate the square root of the right side: 5.959498721

Break this problem into two subproblems by setting 
(x + 2.125) equal to 5.959498721 and -5.959498721.

Subproblem 1

x + 2.125 = 5.959498721 Simplifying x + 2.125 = 5.959498721 Reorder the terms: 2.125 + x = 5.959498721 Solving 2.125 + x = 5.959498721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = 5.959498721 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = 5.959498721 + -2.125 x = 5.959498721 + -2.125 Combine like terms: 5.959498721 + -2.125 = 3.834498721 x = 3.834498721 Simplifying x = 3.834498721

Subproblem 2

x + 2.125 = -5.959498721 Simplifying x + 2.125 = -5.959498721 Reorder the terms: 2.125 + x = -5.959498721 Solving 2.125 + x = -5.959498721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.125' to each side of the equation. 2.125 + -2.125 + x = -5.959498721 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = -5.959498721 + -2.125 x = -5.959498721 + -2.125 Combine like terms: -5.959498721 + -2.125 = -8.084498721 x = -8.084498721 Simplifying x = -8.084498721

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.834498721, -8.084498721}

See similar equations:

| 5.8=z-2.2 | | 4(x-4)=2(x+4)+4 | | 6x+50=9x+48 | | 20x=404 | | (-92)(-3)= | | 4x+24=28 | | x+9+12=-9 | | 150m-125m+38800=40000-175m | | sqrtx+sqrtx+2=4 | | -4x+24=4x+25 | | 10x=202 | | 5x(-3a+2b)= | | 6d=18d-156 | | 9x+30=6x-5 | | 5x(-3b+2b)= | | 9x^4-64y^6=0 | | 4x-5y+2xy=0 | | 16m+64-4=188 | | 5x(-3+2b)= | | 7a^2+32a=7-40a | | 5w+3=3+2w | | c=x+0.06x+0.15y | | 36-9-8b=11 | | -5=-x-(-17) | | 5+2(x+4)=2x+4+3x | | 7(-1-v)=-7v-3 | | 6x+12=5x+40 | | 2h-3=11 | | 6x+8+-4x=4(x+2) | | -5=5x-(-17) | | 2y+5x=270 | | 12-(3x+7)=8 |

Equations solver categories