7x^2-7x+28=0

Simple and best practice solution for 7x^2-7x+28=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^2-7x+28=0 equation:


Simplifying
7x2 + -7x + 28 = 0

Reorder the terms:
28 + -7x + 7x2 = 0

Solving
28 + -7x + 7x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7'.
7(4 + -1x + x2) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(4 + -1x + x2)' equal to zero and attempt to solve: Simplifying 4 + -1x + x2 = 0 Solving 4 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + -1x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + -1x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x + x2 = 0 + -4 -1x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -1x + x2 = -4 The x term is -1x. 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. -1x + 0.25 + x2 = -4 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -4 + 0.25 Combine like terms: -4 + 0.25 = -3.75 0.25 + -1x + x2 = -3.75 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = -3.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| (-6-6-16)/(2) | | 7-2(x-5)=8-3(2x-7) | | xy+6=xy+4x | | x/1.3=2 | | x=12+12 | | (8b-5)/3=9 | | 12+12=x | | (-4x/x+7)-(8/x+7) | | 1.1x-4=0.8 | | k=0.777777777778 | | (3/x-3)-(5/x-2) | | 24-12x-3x+15=4-4x | | 5x+16=9x+1 | | 15z=-60 | | 8(x-4)=14(x+2) | | -3x-55=11x+125 | | (9/x-1)-(5/x+4) | | 1/7x=3/4 | | 8(x-4)=15(x+2) | | 4y-8-y=10y-5y | | -3y^4(8y^2+2y-6)= | | -6=-1/3x+5 | | -18-4x=179+9x | | (-3/x+2)-(-5/x+3) | | x^3=128 | | 36/9x2 | | 26x^2=60x-2x^3 | | (-(6b-4y)/(8b))-(7b+10y/(8b)) | | 0=4(3/2)+b | | 7x-9.2=12.5 | | .02X=42000 | | 7(3x-5)=9(4x+20) |

Equations solver categories