14x^2+12x-3=0

Simple and best practice solution for 14x^2+12x-3=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+12x-3=0 equation:


Simplifying
14x2 + 12x + -3 = 0

Reorder the terms:
-3 + 12x + 14x2 = 0

Solving
-3 + 12x + 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'.
-0.2142857143 + 0.8571428571x + x2 = 0

Move the constant term to the right:

Add '0.2142857143' to each side of the equation.
-0.2142857143 + 0.8571428571x + 0.2142857143 + x2 = 0 + 0.2142857143

Reorder the terms:
-0.2142857143 + 0.2142857143 + 0.8571428571x + x2 = 0 + 0.2142857143

Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000
0.0000000000 + 0.8571428571x + x2 = 0 + 0.2142857143
0.8571428571x + x2 = 0 + 0.2142857143

Combine like terms: 0 + 0.2142857143 = 0.2142857143
0.8571428571x + x2 = 0.2142857143

The x term is 0.8571428571x.  Take half its coefficient (0.4285714286).
Square it (0.1836734694) and add it to both sides.

Add '0.1836734694' to each side of the equation.
0.8571428571x + 0.1836734694 + x2 = 0.2142857143 + 0.1836734694

Reorder the terms:
0.1836734694 + 0.8571428571x + x2 = 0.2142857143 + 0.1836734694

Combine like terms: 0.2142857143 + 0.1836734694 = 0.3979591837
0.1836734694 + 0.8571428571x + x2 = 0.3979591837

Factor a perfect square on the left side:
(x + 0.4285714286)(x + 0.4285714286) = 0.3979591837

Calculate the square root of the right side: 0.630840062

Break this problem into two subproblems by setting 
(x + 0.4285714286) equal to 0.630840062 and -0.630840062.

Subproblem 1

x + 0.4285714286 = 0.630840062 Simplifying x + 0.4285714286 = 0.630840062 Reorder the terms: 0.4285714286 + x = 0.630840062 Solving 0.4285714286 + x = 0.630840062 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4285714286' to each side of the equation. 0.4285714286 + -0.4285714286 + x = 0.630840062 + -0.4285714286 Combine like terms: 0.4285714286 + -0.4285714286 = 0.0000000000 0.0000000000 + x = 0.630840062 + -0.4285714286 x = 0.630840062 + -0.4285714286 Combine like terms: 0.630840062 + -0.4285714286 = 0.2022686334 x = 0.2022686334 Simplifying x = 0.2022686334

Subproblem 2

x + 0.4285714286 = -0.630840062 Simplifying x + 0.4285714286 = -0.630840062 Reorder the terms: 0.4285714286 + x = -0.630840062 Solving 0.4285714286 + x = -0.630840062 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4285714286' to each side of the equation. 0.4285714286 + -0.4285714286 + x = -0.630840062 + -0.4285714286 Combine like terms: 0.4285714286 + -0.4285714286 = 0.0000000000 0.0000000000 + x = -0.630840062 + -0.4285714286 x = -0.630840062 + -0.4285714286 Combine like terms: -0.630840062 + -0.4285714286 = -1.0594114906 x = -1.0594114906 Simplifying x = -1.0594114906

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2022686334, -1.0594114906}

See similar equations:

| 18-y=y | | 45=2(c+12) | | -4.64a=31.552 | | 9X-2X-3=5X+2 | | 115=5x+15 | | 2ln(x)=ln(7x) | | 8w-4=20 | | -5x-2x+3=0 | | 4x-(12)=60 | | 46=(c+11) | | 43.52=9g+3.56 | | 2ln(x)=ln(7) | | .3(k-2)=.6 | | 1.84g-4=0.60 | | 2(X+5)=2(X-2) | | 3x+8-6x=23 | | -5(x+1)-x-8=-6(x+4)+11 | | 2-5g=3-5 | | 63=3(h-71) | | 30=3n+6 | | 4lnx-7lnx=1 | | 11+3n=20 | | 45c+10b= | | 5x-67=20+8x | | 4lnx+7lnx=1 | | 25p^2-49=0 | | 15t-t= | | -4(-6-3x)=108 | | -204=6(-2+4x) | | (X+50)+(x+60)=90 | | 1.5x=-2y+11 | | (33/4-2/5)+5/8=x |

Equations solver categories