x^2+x(x-5)-x+7=

Simple and best practice solution for x^2+x(x-5)-x+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 x^2+x(x-5)-x+7= equation:


Simplifying
x2 + x(x + -5) + -1x + 7 = 0

Reorder the terms:
x2 + x(-5 + x) + -1x + 7 = 0
x2 + (-5 * x + x * x) + -1x + 7 = 0
x2 + (-5x + x2) + -1x + 7 = 0

Reorder the terms:
7 + -5x + -1x + x2 + x2 = 0

Combine like terms: -5x + -1x = -6x
7 + -6x + x2 + x2 = 0

Combine like terms: x2 + x2 = 2x2
7 + -6x + 2x2 = 0

Solving
7 + -6x + 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'.
3.5 + -3x + x2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -3x + -3.5 + x2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -3x + x2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -3x + x2 = 0 + -3.5
-3x + x2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-3x + x2 = -3.5

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = -3.5 + 2.25

Reorder the terms:
2.25 + -3x + x2 = -3.5 + 2.25

Combine like terms: -3.5 + 2.25 = -1.25
2.25 + -3x + x2 = -1.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = -1.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2(3x-4)+13=10x | | 6x-70=45x-200 | | 4x^2+2x^2=12 | | 5x-2=26 | | 2(3m+9)-4(m+8)= | | 1-8t=-9(b+1) | | 6-4x=12x | | A-4/8-4(a-4)/6=5a+15/3 | | -12-x/9=51 | | 245=-7-6(8x+6) | | 3x+7=-4x+28 | | -x-9=-9+4x | | 1+4x=3x+11 | | .5(x+200)=.54x-212 | | x/4-16=47 | | 0.7-4y=1.4 | | -6(4+2x)=-120 | | 950+700+3x=700+300+8x | | 2(3x-4)=6x-10 | | 3x-5/2x-7=23 | | -7x+4=-6x-8 | | 0.04y+0.15(200-y)=0.39y | | 0.5x+3=6 | | 6x+24=4x+8 | | .5(x+200)=.54-212 | | 7r-4r+2=6r-r | | 10+3x=5x+18 | | 6(x+7)-3(x+7)=3x+21 | | x=(8+z)k | | 11x+4a-6a-9b= | | s^2-11s+28= | | 5x-7x+7=x-5+12 |

Equations solver categories