(5x-8)-(2x^2-6x+8)=

Simple and best practice solution for (5x-8)-(2x^2-6x+8)= 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 (5x-8)-(2x^2-6x+8)= equation:


Simplifying
(5x + -8) + -1(2x2 + -6x + 8) = 0

Reorder the terms:
(-8 + 5x) + -1(2x2 + -6x + 8) = 0

Remove parenthesis around (-8 + 5x)
-8 + 5x + -1(2x2 + -6x + 8) = 0

Reorder the terms:
-8 + 5x + -1(8 + -6x + 2x2) = 0
-8 + 5x + (8 * -1 + -6x * -1 + 2x2 * -1) = 0
-8 + 5x + (-8 + 6x + -2x2) = 0

Reorder the terms:
-8 + -8 + 5x + 6x + -2x2 = 0

Combine like terms: -8 + -8 = -16
-16 + 5x + 6x + -2x2 = 0

Combine like terms: 5x + 6x = 11x
-16 + 11x + -2x2 = 0

Solving
-16 + 11x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
8 + -5.5x + x2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -5.5x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -5.5x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -5.5x + x2 = 0 + -8
-5.5x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-5.5x + x2 = -8

The x term is -5.5x.  Take half its coefficient (-2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
-5.5x + 7.5625 + x2 = -8 + 7.5625

Reorder the terms:
7.5625 + -5.5x + x2 = -8 + 7.5625

Combine like terms: -8 + 7.5625 = -0.4375
7.5625 + -5.5x + x2 = -0.4375

Factor a perfect square on the left side:
(x + -2.75)(x + -2.75) = -0.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5x-2x-6=24 | | 3a-7=a+8 | | x(x+3)(x-6)=0 | | 14-65+60=9 | | (2+4x+8x^2+7x^3)-(-2-4x-8x^2+7x^3)= | | 2a^2-28a=0 | | 3x=-19 | | 30+3=x+6 | | 2x+x+51=180 | | -2=2(4)+b | | -2=2(4)+b | | 6x+-3=6x-4 | | 3X+5x-6x=34 | | 0.333x-6=9+0.66666667 | | 2x-5=-16 | | 9-x=5+4x | | 14-65-3z=9 | | 1.6k=-11 | | y+20.51=28.00 | | (-6x+4)-(x^2+x-4)= | | 4+6x=3-x-5x | | 33-2m=-14(m+4)-7 | | 16+2r=-16 | | -2x-6=-9+x | | 2x-5=12x-5 | | 16+2r=16 | | 100x^2-500x+400=0 | | -x-19+2y=0 | | 38+59.5= | | -2x-6=9+x | | 30.7+38= | | 12x-5=8-5x |

Equations solver categories