5*x^2+2*x-50=0

Simple and best practice solution for 5*x^2+2*x-50=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 5*x^2+2*x-50=0 equation:


Simplifying
5x2 + 2x + -50 = 0

Reorder the terms:
-50 + 2x + 5x2 = 0

Solving
-50 + 2x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-10 + 0.4x + x2 = 0

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + 0.4x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + 0.4x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 0.4x + x2 = 0 + 10
0.4x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
0.4x + x2 = 10

The x term is 0.4x.  Take half its coefficient (0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
0.4x + 0.04 + x2 = 10 + 0.04

Reorder the terms:
0.04 + 0.4x + x2 = 10 + 0.04

Combine like terms: 10 + 0.04 = 10.04
0.04 + 0.4x + x2 = 10.04

Factor a perfect square on the left side:
(x + 0.2)(x + 0.2) = 10.04

Calculate the square root of the right side: 3.168595904

Break this problem into two subproblems by setting 
(x + 0.2) equal to 3.168595904 and -3.168595904.

Subproblem 1

x + 0.2 = 3.168595904 Simplifying x + 0.2 = 3.168595904 Reorder the terms: 0.2 + x = 3.168595904 Solving 0.2 + x = 3.168595904 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 3.168595904 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 3.168595904 + -0.2 x = 3.168595904 + -0.2 Combine like terms: 3.168595904 + -0.2 = 2.968595904 x = 2.968595904 Simplifying x = 2.968595904

Subproblem 2

x + 0.2 = -3.168595904 Simplifying x + 0.2 = -3.168595904 Reorder the terms: 0.2 + x = -3.168595904 Solving 0.2 + x = -3.168595904 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -3.168595904 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -3.168595904 + -0.2 x = -3.168595904 + -0.2 Combine like terms: -3.168595904 + -0.2 = -3.368595904 x = -3.368595904 Simplifying x = -3.368595904

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.968595904, -3.368595904}

See similar equations:

| -2d-3(d-3)=-27+4d | | 2(2x+4)=25 | | 292x+40=25 | | 4x+3x+227=6x+227 | | 6x^2=19x-3 | | m/4-4=18 | | 2x+2(90+x)=1680 | | 7x-3=2x+15 | | 8x+3=2x+19 | | 3x-30=x | | 8p=200 | | T/4=-9 | | 2/y=10/60 | | log(0.8)=-.0906 | | 6y+2=5y-4 | | -5/6x=-20 | | log(350)=x | | 5y/7-15=5y+45 | | L(5+2L)=46 | | 15x+2=106 | | 4(-3x/2-0.5)=5x-1 | | 7x-52=10x+59 | | 7t+7=9t-5 | | 5.2y+2.8=-.3y-2.7 | | .04x+.19y=-.82 | | 1-4(6y-3)=8(2y-5)+6 | | x^2+1.4x-0.51=0 | | 5-(-5z-8)=3(-2z+9)+1 | | -9u-9=-u-17 | | 4w-18=6w | | 5/2x+7/8=4/3x+1/8 | | x^2+7x+30=0 |

Equations solver categories