7x^2-56x+48=0

Simple and best practice solution for 7x^2-56x+48=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 7x^2-56x+48=0 equation:


Simplifying
7x2 + -56x + 48 = 0

Reorder the terms:
48 + -56x + 7x2 = 0

Solving
48 + -56x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
6.857142857 + -8x + x2 = 0

Move the constant term to the right:

Add '-6.857142857' to each side of the equation.
6.857142857 + -8x + -6.857142857 + x2 = 0 + -6.857142857

Reorder the terms:
6.857142857 + -6.857142857 + -8x + x2 = 0 + -6.857142857

Combine like terms: 6.857142857 + -6.857142857 = 0.000000000
0.000000000 + -8x + x2 = 0 + -6.857142857
-8x + x2 = 0 + -6.857142857

Combine like terms: 0 + -6.857142857 = -6.857142857
-8x + x2 = -6.857142857

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -6.857142857 + 16

Reorder the terms:
16 + -8x + x2 = -6.857142857 + 16

Combine like terms: -6.857142857 + 16 = 9.142857143
16 + -8x + x2 = 9.142857143

Factor a perfect square on the left side:
(x + -4)(x + -4) = 9.142857143

Calculate the square root of the right side: 3.023715784

Break this problem into two subproblems by setting 
(x + -4) equal to 3.023715784 and -3.023715784.

Subproblem 1

x + -4 = 3.023715784 Simplifying x + -4 = 3.023715784 Reorder the terms: -4 + x = 3.023715784 Solving -4 + x = 3.023715784 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.023715784 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.023715784 + 4 x = 3.023715784 + 4 Combine like terms: 3.023715784 + 4 = 7.023715784 x = 7.023715784 Simplifying x = 7.023715784

Subproblem 2

x + -4 = -3.023715784 Simplifying x + -4 = -3.023715784 Reorder the terms: -4 + x = -3.023715784 Solving -4 + x = -3.023715784 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.023715784 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.023715784 + 4 x = -3.023715784 + 4 Combine like terms: -3.023715784 + 4 = 0.976284216 x = 0.976284216 Simplifying x = 0.976284216

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.023715784, 0.976284216}

See similar equations:

| 6r+7=61 | | 0.67x+y=-7 | | 15x-6x=153 | | 7x^2+14y=18 | | 8(x+2)=4(x+7) | | y+6x=2 | | 10+d=7 | | -4(7+5k)=28 | | 5n-7=-12 | | 10n+5y= | | 8-3(3p)=2 | | (9x+3)+(13x-25)=77 | | 175000.00+550.00x=35000.00+1680.00 | | 2x+my=-2x+ny | | 20x^2y-15xy^2=0 | | 42=S+36 | | s+0.06s=32.14 | | x+x+x-7+x-7=x-7+x+9+x+2 | | 20x^2-15xy^2=0 | | 7x-4=32+0 | | 2c-4+c^2= | | 4=ln(6x+13) | | SolveP=a+b+cforb | | 2x+382=2498 | | Y-3.9=12.4 | | .5(4c+6)=4 | | x+x+x-7+x-7=x-7+x-9+x+2 | | 2.3+10m=8.51 | | (-8)-5y=12-9y | | 6f+8f=-23 | | 175000.00+500.00x=35000.00+1680.00x | | 2a-6=-8a |

Equations solver categories