3x^2-6x+4=7

Simple and best practice solution for 3x^2-6x+4=7 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 3x^2-6x+4=7 equation:


Simplifying
3x2 + -6x + 4 = 7

Reorder the terms:
4 + -6x + 3x2 = 7

Solving
4 + -6x + 3x2 = 7

Solving for variable 'x'.

Reorder the terms:
4 + -7 + -6x + 3x2 = 7 + -7

Combine like terms: 4 + -7 = -3
-3 + -6x + 3x2 = 7 + -7

Combine like terms: 7 + -7 = 0
-3 + -6x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-1 + -2x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-1 + -2x + x2)' equal to zero and attempt to solve: Simplifying -1 + -2x + x2 = 0 Solving -1 + -2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + -2x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -2x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2x + x2 = 0 + 1 -2x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -2x + x2 = 1 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 1 + 1 Reorder the terms: 1 + -2x + x2 = 1 + 1 Combine like terms: 1 + 1 = 2 1 + -2x + x2 = 2 Factor a perfect square on the left side: (x + -1)(x + -1) = 2 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (x + -1) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + -1 = 1.414213562 Simplifying x + -1 = 1.414213562 Reorder the terms: -1 + x = 1.414213562 Solving -1 + x = 1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 1.414213562 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.414213562 + 1 x = 1.414213562 + 1 Combine like terms: 1.414213562 + 1 = 2.414213562 x = 2.414213562 Simplifying x = 2.414213562

Subproblem 2

x + -1 = -1.414213562 Simplifying x + -1 = -1.414213562 Reorder the terms: -1 + x = -1.414213562 Solving -1 + x = -1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -1.414213562 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.414213562 + 1 x = -1.414213562 + 1 Combine like terms: -1.414213562 + 1 = -0.414213562 x = -0.414213562 Simplifying x = -0.414213562

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.414213562, -0.414213562}

Solution

x = {2.414213562, -0.414213562}

See similar equations:

| 5p-3=9 | | 5x-4(-1.5x+2)=3 | | 4x^3+9x^2-30x-8=0 | | n^3-3n^2+2n-24=0 | | 4k/k^2-92/3+k | | 8(-.75x-.5)=-6x-4 | | x=2/5y-3 | | -16t^2+2t=0 | | y=3-3(0.5) | | 7w^2-56w+84= | | 3c-7a=2k+5 | | 4x+4(3-3x)=8 | | 4x+12-12x=8 | | Y=4(-4)-8 | | 27750.00+200.00=50000 | | 12.666666-9x+x^2=0 | | 9(2+x)-4=3x-10 | | -48=6x+8y | | 16-3x+x=180 | | 2x^2-3-6=0 | | 5(2x-3)-(3x+3)=0 | | 4x+18y=-8 | | 40-(3x)=25 | | (3h+3)(4h+6)= | | 0.06-0.01(x+2)=-0.02(1-x) | | 7m-25=2m-7m | | c*c-7c=0 | | c*c-5c=0 | | 2=-3(2x+2)+7x | | x*x+18x-81=0 | | 1/(3x^5)^3 | | 3x^4y^7/6x^8y^5 |

Equations solver categories