100=2x^2+2x+4

Simple and best practice solution for 100=2x^2+2x+4 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 100=2x^2+2x+4 equation:


Simplifying
100 = 2x2 + 2x + 4

Reorder the terms:
100 = 4 + 2x + 2x2

Solving
100 = 4 + 2x + 2x2

Solving for variable 'x'.

Combine like terms: 100 + -4 = 96
96 + -2x + -2x2 = 4 + 2x + 2x2 + -4 + -2x + -2x2

Reorder the terms:
96 + -2x + -2x2 = 4 + -4 + 2x + -2x + 2x2 + -2x2

Combine like terms: 4 + -4 = 0
96 + -2x + -2x2 = 0 + 2x + -2x + 2x2 + -2x2
96 + -2x + -2x2 = 2x + -2x + 2x2 + -2x2

Combine like terms: 2x + -2x = 0
96 + -2x + -2x2 = 0 + 2x2 + -2x2
96 + -2x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
96 + -2x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(48 + -1x + -1x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(48 + -1x + -1x2)' equal to zero and attempt to solve: Simplifying 48 + -1x + -1x2 = 0 Solving 48 + -1x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -48 + x + x2 = 0 Move the constant term to the right: Add '48' to each side of the equation. -48 + x + 48 + x2 = 0 + 48 Reorder the terms: -48 + 48 + x + x2 = 0 + 48 Combine like terms: -48 + 48 = 0 0 + x + x2 = 0 + 48 x + x2 = 0 + 48 Combine like terms: 0 + 48 = 48 x + x2 = 48 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. + 0.25 + x2 = 48 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 48 + 0.25 Combine like terms: 48 + 0.25 = 48.25 1.25 + x2 = 48.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 48.25 Calculate the square root of the right side: 6.946221995 Break this problem into two subproblems by setting (x + 0.5) equal to 6.946221995 and -6.946221995.

Subproblem 1

x + 0.5 = 6.946221995 Simplifying x + 0.5 = 6.946221995 Reorder the terms: 0.5 + x = 6.946221995 Solving 0.5 + x = 6.946221995 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 = 6.946221995 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 6.946221995 + -0.5 x = 6.946221995 + -0.5 Combine like terms: 6.946221995 + -0.5 = 6.446221995 x = 6.446221995 Simplifying x = 6.446221995

Subproblem 2

x + 0.5 = -6.946221995 Simplifying x + 0.5 = -6.946221995 Reorder the terms: 0.5 + x = -6.946221995 Solving 0.5 + x = -6.946221995 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 = -6.946221995 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -6.946221995 + -0.5 x = -6.946221995 + -0.5 Combine like terms: -6.946221995 + -0.5 = -7.446221995 x = -7.446221995 Simplifying x = -7.446221995

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.446221995, -7.446221995}

Solution

x = {6.446221995, -7.446221995}

See similar equations:

| -28=x^2-3x | | 2=4v+4 | | 6x+33=15x-48 | | +12+(-11)= | | -3y+11=-2(3y+2) | | 7(6x+4)=406 | | 0.8Q^2-1.4Q+0.5=0 | | x+x+52=180 | | +45+(+36)= | | 5p+28=180 | | -8+(-14)= | | -35+4x=-x+15 | | 3x*10= | | G(x)=x^2-10-3 | | n+5=n+2 | | 19m+m=180 | | 11z-9=2z-9 | | c-8/2=11-4c/11 | | 4+-8=20 | | 2y/3-7/3=11/3 | | uvx=vx-u | | 5y-7=33 | | -5-8(-2n-1)=7(2n-3)+4 | | 116-2x=16x+20 | | m=19m | | 30=(4x^2)+3x | | 12(x-7)=7(x-12) | | 7(t-6)+3t=5(2t+4)-13 | | 4(a-2)=8a-(4a-8) | | t/2+1/5=4 | | 4x^2=16x-35 | | 1x+3y=10 |

Equations solver categories