2x^2-14x-2=-2x-7

Simple and best practice solution for 2x^2-14x-2=-2x-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 2x^2-14x-2=-2x-7 equation:


Simplifying
2x2 + -14x + -2 = -2x + -7

Reorder the terms:
-2 + -14x + 2x2 = -2x + -7

Reorder the terms:
-2 + -14x + 2x2 = -7 + -2x

Solving
-2 + -14x + 2x2 = -7 + -2x

Solving for variable 'x'.

Reorder the terms:
-2 + 7 + -14x + 2x + 2x2 = -7 + -2x + 7 + 2x

Combine like terms: -2 + 7 = 5
5 + -14x + 2x + 2x2 = -7 + -2x + 7 + 2x

Combine like terms: -14x + 2x = -12x
5 + -12x + 2x2 = -7 + -2x + 7 + 2x

Reorder the terms:
5 + -12x + 2x2 = -7 + 7 + -2x + 2x

Combine like terms: -7 + 7 = 0
5 + -12x + 2x2 = 0 + -2x + 2x
5 + -12x + 2x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
5 + -12x + 2x2 = 0

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

Divide each side by '2'.
2.5 + -6x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -6x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -6x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -6x + x2 = 0 + -2.5
-6x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-6x + x2 = -2.5

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 = -2.5 + 9

Reorder the terms:
9 + -6x + x2 = -2.5 + 9

Combine like terms: -2.5 + 9 = 6.5
9 + -6x + x2 = 6.5

Factor a perfect square on the left side:
(x + -3)(x + -3) = 6.5

Calculate the square root of the right side: 2.549509757

Break this problem into two subproblems by setting 
(x + -3) equal to 2.549509757 and -2.549509757.

Subproblem 1

x + -3 = 2.549509757 Simplifying x + -3 = 2.549509757 Reorder the terms: -3 + x = 2.549509757 Solving -3 + x = 2.549509757 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 = 2.549509757 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.549509757 + 3 x = 2.549509757 + 3 Combine like terms: 2.549509757 + 3 = 5.549509757 x = 5.549509757 Simplifying x = 5.549509757

Subproblem 2

x + -3 = -2.549509757 Simplifying x + -3 = -2.549509757 Reorder the terms: -3 + x = -2.549509757 Solving -3 + x = -2.549509757 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 = -2.549509757 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.549509757 + 3 x = -2.549509757 + 3 Combine like terms: -2.549509757 + 3 = 0.450490243 x = 0.450490243 Simplifying x = 0.450490243

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.549509757, 0.450490243}

See similar equations:

| (6x+7)+(4x-5)= | | 16+5-2y=8y+4 | | 7c+11c+(-12c)= | | -8x=98 | | 8w-56=72 | | 10(1-2y)=-3(2y-1) | | -5x+7x=-18+3x+5x | | 18+5m=48 | | (6x-7)-(4x-5)= | | 10h+4=7h-2 | | 3x-1+10=(-1)25 | | 4+9y-3=3(3y+2) | | -8r+(-4r)+12r= | | 16-9x=2x-17 | | -7x-7x= | | 28x-91=35 | | -3.8x+2=0 | | -3.8+2=0 | | 10-2x=-43 | | 3(x+2)+8=2(x-3) | | 25x^2-4=49x^2 | | 3=3+75t-16t^2 | | x+3x^2=5 | | -4=-36 | | b(5)=28 | | 5(1+T)=6(2+T) | | -7x-11x=90 | | 17k+(-18k)= | | 80=-4(4m-4) | | 40y-40=40y+40 | | k-1+4k=-16 | | 3x-1+10=25 |

Equations solver categories