0=2x^2-7x-175

Simple and best practice solution for 0=2x^2-7x-175 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 0=2x^2-7x-175 equation:


Simplifying
0 = 2x2 + -7x + -175

Reorder the terms:
0 = -175 + -7x + 2x2

Solving
0 = -175 + -7x + 2x2

Solving for variable 'x'.

Combine like terms: 0 + 175 = 175
175 + 7x + -2x2 = -175 + -7x + 2x2 + 175 + 7x + -2x2

Reorder the terms:
175 + 7x + -2x2 = -175 + 175 + -7x + 7x + 2x2 + -2x2

Combine like terms: -175 + 175 = 0
175 + 7x + -2x2 = 0 + -7x + 7x + 2x2 + -2x2
175 + 7x + -2x2 = -7x + 7x + 2x2 + -2x2

Combine like terms: -7x + 7x = 0
175 + 7x + -2x2 = 0 + 2x2 + -2x2
175 + 7x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
175 + 7x + -2x2 = 0

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

Divide each side by '-2'.
-87.5 + -3.5x + x2 = 0

Move the constant term to the right:

Add '87.5' to each side of the equation.
-87.5 + -3.5x + 87.5 + x2 = 0 + 87.5

Reorder the terms:
-87.5 + 87.5 + -3.5x + x2 = 0 + 87.5

Combine like terms: -87.5 + 87.5 = 0.0
0.0 + -3.5x + x2 = 0 + 87.5
-3.5x + x2 = 0 + 87.5

Combine like terms: 0 + 87.5 = 87.5
-3.5x + x2 = 87.5

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = 87.5 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = 87.5 + 3.0625

Combine like terms: 87.5 + 3.0625 = 90.5625
3.0625 + -3.5x + x2 = 90.5625

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = 90.5625

Calculate the square root of the right side: 9.516433155

Break this problem into two subproblems by setting 
(x + -1.75) equal to 9.516433155 and -9.516433155.

Subproblem 1

x + -1.75 = 9.516433155 Simplifying x + -1.75 = 9.516433155 Reorder the terms: -1.75 + x = 9.516433155 Solving -1.75 + x = 9.516433155 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 9.516433155 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 9.516433155 + 1.75 x = 9.516433155 + 1.75 Combine like terms: 9.516433155 + 1.75 = 11.266433155 x = 11.266433155 Simplifying x = 11.266433155

Subproblem 2

x + -1.75 = -9.516433155 Simplifying x + -1.75 = -9.516433155 Reorder the terms: -1.75 + x = -9.516433155 Solving -1.75 + x = -9.516433155 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -9.516433155 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -9.516433155 + 1.75 x = -9.516433155 + 1.75 Combine like terms: -9.516433155 + 1.75 = -7.766433155 x = -7.766433155 Simplifying x = -7.766433155

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.266433155, -7.766433155}

See similar equations:

| C(m)=0.15m+1(6.25) | | 82=15x | | x^2+6x+9=5 | | 108=20logx | | 9h(h-4)(3h+2)=0 | | 2(-1-q)-3=17 | | k(k+2)k(k+2)=0 | | -18x+9x-21=-12-16 | | b-4.8=-1.5 | | 3/21=x/1 | | 9x+1=3y+13 | | (2-3x)(2+3x)=0 | | x^2+14x-55=0 | | 19x-13=103 | | (d-6)(d+1)=0 | | 16x+4-3x+x-12=0 | | 5+b=10 | | -3y(y-4)=0 | | x+6-5= | | x+3-2x=0 | | 4x^2=27x | | (-5/4)8/13 | | -8x+9x-21x=-12-16 | | (0.6)8= | | 8x-8/7 | | M/3-6=-8 | | 0=x^3-3x+28 | | 2n+6+n=4n-3n-4 | | 2/3x2/5= | | 3r^2-5r-33=0 | | -6/11-(-1/4)= | | 3x-28=6x-13 |

Equations solver categories