x-x^2-7x+10=-13

Simple and best practice solution for x-x^2-7x+10=-13 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-x^2-7x+10=-13 equation:


Simplifying
x + -1x2 + -7x + 10 = -13

Reorder the terms:
10 + x + -7x + -1x2 = -13

Combine like terms: x + -7x = -6x
10 + -6x + -1x2 = -13

Solving
10 + -6x + -1x2 = -13

Solving for variable 'x'.

Reorder the terms:
10 + 13 + -6x + -1x2 = -13 + 13

Combine like terms: 10 + 13 = 23
23 + -6x + -1x2 = -13 + 13

Combine like terms: -13 + 13 = 0
23 + -6x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-23 + 6x + x2 = 0

Move the constant term to the right:

Add '23' to each side of the equation.
-23 + 6x + 23 + x2 = 0 + 23

Reorder the terms:
-23 + 23 + 6x + x2 = 0 + 23

Combine like terms: -23 + 23 = 0
0 + 6x + x2 = 0 + 23
6x + x2 = 0 + 23

Combine like terms: 0 + 23 = 23
6x + x2 = 23

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 23 + 9

Reorder the terms:
9 + 6x + x2 = 23 + 9

Combine like terms: 23 + 9 = 32
9 + 6x + x2 = 32

Factor a perfect square on the left side:
(x + 3)(x + 3) = 32

Calculate the square root of the right side: 5.656854249

Break this problem into two subproblems by setting 
(x + 3) equal to 5.656854249 and -5.656854249.

Subproblem 1

x + 3 = 5.656854249 Simplifying x + 3 = 5.656854249 Reorder the terms: 3 + x = 5.656854249 Solving 3 + x = 5.656854249 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 5.656854249 + -3 Combine like terms: 3 + -3 = 0 0 + x = 5.656854249 + -3 x = 5.656854249 + -3 Combine like terms: 5.656854249 + -3 = 2.656854249 x = 2.656854249 Simplifying x = 2.656854249

Subproblem 2

x + 3 = -5.656854249 Simplifying x + 3 = -5.656854249 Reorder the terms: 3 + x = -5.656854249 Solving 3 + x = -5.656854249 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -5.656854249 + -3 Combine like terms: 3 + -3 = 0 0 + x = -5.656854249 + -3 x = -5.656854249 + -3 Combine like terms: -5.656854249 + -3 = -8.656854249 x = -8.656854249 Simplifying x = -8.656854249

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.656854249, -8.656854249}

See similar equations:

| 3+x=34 | | 2(2x+12)=2x+15+9 | | 26x*0.5=100 | | 3k-11-8k=-5-17k-3 | | 22=-6t-8 | | x*0.5=1000 | | -17(y-2)=17y+64 | | 8(c-17)=-24 | | 18=3+2(x+2) | | x*50=100 | | 2x+40=x+125 | | w=25h+40 | | 2(3-9x-6x)+5(4x+6)=6 | | 11x-32=67 | | M+22=118 | | 2(-4+7x)=30+6x-6 | | 2x^2-8=4x | | 3x^2-47=1 | | -3(n+7)=12 | | 4--2v=10 | | 28x^2-22x+4=0 | | g/10-20=-19 | | x=(6x+8) | | 3318.1008=2*33.24*r^2+2*3.13*r*36.5 | | w^2-6w-22=-25+w^2 | | 10+2k=18 | | 9k+2=13 | | 0=.01x^2+.7x+6.1 | | 3x+31.5=123 | | w/7+43=46 | | 2s-9=3 | | w^2-6w-22=-25w^2 |

Equations solver categories