4x^2-2x-2=1

Simple and best practice solution for 4x^2-2x-2=1 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^2-2x-2=1 equation:


Simplifying
4x2 + -2x + -2 = 1

Reorder the terms:
-2 + -2x + 4x2 = 1

Solving
-2 + -2x + 4x2 = 1

Solving for variable 'x'.

Reorder the terms:
-2 + -1 + -2x + 4x2 = 1 + -1

Combine like terms: -2 + -1 = -3
-3 + -2x + 4x2 = 1 + -1

Combine like terms: 1 + -1 = 0
-3 + -2x + 4x2 = 0

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

Divide each side by '4'.
-0.75 + -0.5x + x2 = 0

Move the constant term to the right:

Add '0.75' to each side of the equation.
-0.75 + -0.5x + 0.75 + x2 = 0 + 0.75

Reorder the terms:
-0.75 + 0.75 + -0.5x + x2 = 0 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.00 + -0.5x + x2 = 0 + 0.75
-0.5x + x2 = 0 + 0.75

Combine like terms: 0 + 0.75 = 0.75
-0.5x + x2 = 0.75

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 0.75 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 0.75 + 0.0625

Combine like terms: 0.75 + 0.0625 = 0.8125
0.0625 + -0.5x + x2 = 0.8125

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 0.8125

Calculate the square root of the right side: 0.901387819

Break this problem into two subproblems by setting 
(x + -0.25) equal to 0.901387819 and -0.901387819.

Subproblem 1

x + -0.25 = 0.901387819 Simplifying x + -0.25 = 0.901387819 Reorder the terms: -0.25 + x = 0.901387819 Solving -0.25 + x = 0.901387819 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 0.901387819 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 0.901387819 + 0.25 x = 0.901387819 + 0.25 Combine like terms: 0.901387819 + 0.25 = 1.151387819 x = 1.151387819 Simplifying x = 1.151387819

Subproblem 2

x + -0.25 = -0.901387819 Simplifying x + -0.25 = -0.901387819 Reorder the terms: -0.25 + x = -0.901387819 Solving -0.25 + x = -0.901387819 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -0.901387819 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -0.901387819 + 0.25 x = -0.901387819 + 0.25 Combine like terms: -0.901387819 + 0.25 = -0.651387819 x = -0.651387819 Simplifying x = -0.651387819

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.151387819, -0.651387819}

See similar equations:

| 3sin^2x-sin-1=0 | | X+40=3 | | 4-0.3(y-17)=0.5(11y-17) | | 20-1(3x-4)-2=-1(-11x+1) | | x^4+5x^3-4x-20=0 | | 4-0.3(y-17)=0.5(14y-17) | | -2(3x-2)=15x+2 | | -5k^2-6x-7=0 | | 30=-30+30 | | .17y+.04(y+3000)=1380 | | -9a^2+4a-9=0 | | -(2x-4)-(12x-5)+6=-8(x-1)-(10x+8)+3 | | 0=3x^2+5x+4 | | 3-5logx=-12 | | .4j=-3.4 | | w-14=7.3 | | 2w(w-4)=0 | | 7q=147 | | 6x-29=47 | | 8a^3b+16a^2b^2=0 | | 4c+7u-3(c+2u)-l+2(l+4r)= | | 10.625-.75y=.6y | | 22x=65 | | 0.23y-0.8=0.13+1-0.8y | | 6x^3+3x=0 | | 90+87+82+79+e(2)=86 | | 2x-8=108 | | 1-50=26 | | (2XY^2-2Y)dx+(3X^2Y+4x)dy=0 | | 3x-4y-3z=19 | | x-x+3=10 | | 3x-9=-3+9x |

Equations solver categories