4x^2+x-10=0

Simple and best practice solution for 4x^2+x-10=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+x-10=0 equation:


Simplifying
4x2 + x + -10 = 0

Reorder the terms:
-10 + x + 4x2 = 0

Solving
-10 + x + 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'.
-2.5 + 0.25x + x2 = 0

Move the constant term to the right:

Add '2.5' to each side of the equation.
-2.5 + 0.25x + 2.5 + x2 = 0 + 2.5

Reorder the terms:
-2.5 + 2.5 + 0.25x + x2 = 0 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + 0.25x + x2 = 0 + 2.5
0.25x + x2 = 0 + 2.5

Combine like terms: 0 + 2.5 = 2.5
0.25x + x2 = 2.5

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.
0.25x + 0.25 + x2 = 2.5 + 0.25

Reorder the terms:
0.25 + 0.25x + x2 = 2.5 + 0.25

Combine like terms: 2.5 + 0.25 = 2.75
0.25 + 0.25x + x2 = 2.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 2.75

Calculate the square root of the right side: 1.658312395

Break this problem into two subproblems by setting 
(x + 0.5) equal to 1.658312395 and -1.658312395.

Subproblem 1

x + 0.5 = 1.658312395 Simplifying x + 0.5 = 1.658312395 Reorder the terms: 0.5 + x = 1.658312395 Solving 0.5 + x = 1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.658312395 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.658312395 + -0.5 x = 1.658312395 + -0.5 Combine like terms: 1.658312395 + -0.5 = 1.158312395 x = 1.158312395 Simplifying x = 1.158312395

Subproblem 2

x + 0.5 = -1.658312395 Simplifying x + 0.5 = -1.658312395 Reorder the terms: 0.5 + x = -1.658312395 Solving 0.5 + x = -1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.658312395 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.658312395 + -0.5 x = -1.658312395 + -0.5 Combine like terms: -1.658312395 + -0.5 = -2.158312395 x = -2.158312395 Simplifying x = -2.158312395

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.158312395, -2.158312395}

See similar equations:

| h=100-16t | | 6x-2=1x+13 | | -6*3-20=-2*3+4(1+3*3) | | 5/4=a+3/8 | | 9/20=x^2 | | -8+5y=23 | | (3x-3)(x-5)=0 | | -981/2-1001/4 | | 10v=30+5v | | (x-3)(3x-5)=0 | | -981/2-s=1001/4 | | 2x-4=2x-2+2 | | 2(x)+x=450 | | 29=7x+5-3x | | 3.5=8.9-0.6x | | -6n-20=4-14n | | 3.5=89-0.6x | | 2+10x=4+x | | x^3-y^2=0 | | 6x+4x-9=31 | | 14(2x+3y)-5(14y+3x-5)= | | (V-2)(v-4)=0 | | 9x+3y=63 | | -2=-3x-1 | | 24x^2+100x-26=0 | | 6x+7=77 | | 4.9+10m=6.15 | | -5.47+k=14.19 | | 7/8x-1=x-1/3 | | 7x+23=47 | | 11-x=16 | | 0.8=5x+5x^2 |

Equations solver categories