14X^2+X-2=0

Simple and best practice solution for 14X^2+X-2=0 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 14X^2+X-2=0 equation:


Simplifying
14X2 + X + -2 = 0

Reorder the terms:
-2 + X + 14X2 = 0

Solving
-2 + X + 14X2 = 0

Solving for variable 'X'.

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

Divide each side by '14'.
-0.1428571429 + 0.07142857143X + X2 = 0

Move the constant term to the right:

Add '0.1428571429' to each side of the equation.
-0.1428571429 + 0.07142857143X + 0.1428571429 + X2 = 0 + 0.1428571429

Reorder the terms:
-0.1428571429 + 0.1428571429 + 0.07142857143X + X2 = 0 + 0.1428571429

Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000
0.0000000000 + 0.07142857143X + X2 = 0 + 0.1428571429
0.07142857143X + X2 = 0 + 0.1428571429

Combine like terms: 0 + 0.1428571429 = 0.1428571429
0.07142857143X + X2 = 0.1428571429

The X term is X.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.07142857143X + 0.25 + X2 = 0.1428571429 + 0.25

Reorder the terms:
0.25 + 0.07142857143X + X2 = 0.1428571429 + 0.25

Combine like terms: 0.1428571429 + 0.25 = 0.3928571429
0.25 + 0.07142857143X + X2 = 0.3928571429

Factor a perfect square on the left side:
(X + 0.5)(X + 0.5) = 0.3928571429

Calculate the square root of the right side: 0.626783171

Break this problem into two subproblems by setting 
(X + 0.5) equal to 0.626783171 and -0.626783171.

Subproblem 1

X + 0.5 = 0.626783171 Simplifying X + 0.5 = 0.626783171 Reorder the terms: 0.5 + X = 0.626783171 Solving 0.5 + X = 0.626783171 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + X = 0.626783171 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = 0.626783171 + -0.5 X = 0.626783171 + -0.5 Combine like terms: 0.626783171 + -0.5 = 0.126783171 X = 0.126783171 Simplifying X = 0.126783171

Subproblem 2

X + 0.5 = -0.626783171 Simplifying X + 0.5 = -0.626783171 Reorder the terms: 0.5 + X = -0.626783171 Solving 0.5 + X = -0.626783171 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + X = -0.626783171 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = -0.626783171 + -0.5 X = -0.626783171 + -0.5 Combine like terms: -0.626783171 + -0.5 = -1.126783171 X = -1.126783171 Simplifying X = -1.126783171

Solution

The solution to the problem is based on the solutions from the subproblems. X = {0.126783171, -1.126783171}

See similar equations:

| x+5x-3=42 | | 13x-35=26-1131 | | 0=4x^3+4x^2-16x-16 | | 14=c/2 | | x-5x-3=42 | | 5(x-9)=8x-48 | | 5y/6=4y-5 | | 4+9g=31 | | 3y^2+16y=0 | | 3x+16+18=180 | | (3x-7)-5(2x+1)-(x-2)=x-(-(3x-1)) | | x^4-2x^3-x^2-4x-6=0 | | 7-4/5x=3 | | 101=1+4(4m+5) | | 20-4n=-28 | | 15-x=44 | | 4/(x-7)^3 | | 10x+10=35x | | (5x-3)=(2x+1) | | 2(r-4)+5(r-2)= | | 5-9=-9 | | 3x+y-3z=-5 | | x^2+0+2=0 | | (3.9+3.8)x=x+19.4 | | 16+2x-5-3x=36-x+3-4x-8 | | 3+4(7+5-9)-7-1= | | 7y+10+3y-7-6y= | | 4x-5+25=180 | | z/6-10=-18 | | 2x-5(X-4)=14 | | 5w-16w=33 | | 8x+3(x-2)=5(2x-3) |

Equations solver categories