4+20x+2x^2=0

Simple and best practice solution for 4+20x+2x^2=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 4+20x+2x^2=0 equation:


Simplifying
4 + 20x + 2x2 = 0

Solving
4 + 20x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(2 + 10x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(2 + 10x + x2)' equal to zero and attempt to solve: Simplifying 2 + 10x + x2 = 0 Solving 2 + 10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + 10x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + 10x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 10x + x2 = 0 + -2 10x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 10x + x2 = -2 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = -2 + 25 Reorder the terms: 25 + 10x + x2 = -2 + 25 Combine like terms: -2 + 25 = 23 25 + 10x + x2 = 23 Factor a perfect square on the left side: (x + 5)(x + 5) = 23 Calculate the square root of the right side: 4.795831523 Break this problem into two subproblems by setting (x + 5) equal to 4.795831523 and -4.795831523.

Subproblem 1

x + 5 = 4.795831523 Simplifying x + 5 = 4.795831523 Reorder the terms: 5 + x = 4.795831523 Solving 5 + x = 4.795831523 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 4.795831523 + -5 Combine like terms: 5 + -5 = 0 0 + x = 4.795831523 + -5 x = 4.795831523 + -5 Combine like terms: 4.795831523 + -5 = -0.204168477 x = -0.204168477 Simplifying x = -0.204168477

Subproblem 2

x + 5 = -4.795831523 Simplifying x + 5 = -4.795831523 Reorder the terms: 5 + x = -4.795831523 Solving 5 + x = -4.795831523 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -4.795831523 + -5 Combine like terms: 5 + -5 = 0 0 + x = -4.795831523 + -5 x = -4.795831523 + -5 Combine like terms: -4.795831523 + -5 = -9.795831523 x = -9.795831523 Simplifying x = -9.795831523

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.204168477, -9.795831523}

Solution

x = {-0.204168477, -9.795831523}

See similar equations:

| 180=2x+3y | | .25(t+5)=22 | | 17n-(-3)=54 | | 6(y+2)=128 | | .2(s-200)=575 | | p+0.05p=5.96 | | .2(s-200)=160 | | -5x+8x+40=130 | | 12(z+3)-3x=117 | | -4+15b=5(3b-2) | | 0.6324= | | -16x^2+120t-225=0 | | 4m-4-m=5 | | 2p^2-3p+6=3 | | 7+12-(-4)+(-6)= | | x^2-101y-1=0 | | (2a+2b)(a+b)= | | 7+12-(4)+(6)= | | -2x+4=x-7 | | 3x-10+4x=5x-6 | | x^2+9x+72=0 | | 2-2x+4x=2 | | 0.25(a+56)=55 | | -6x=-9x+8 | | (X-3)=-4 | | 3y=2-2x | | .25(a+56)=64 | | -4(-y-6.5)+y=5 | | 8x+21=1-6x+12x | | 7y+7=-15-8y | | .13(c+50)=30 | | 4. 3(2x+5)=16 |

Equations solver categories