8x^2+27x-14=0

Simple and best practice solution for 8x^2+27x-14=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 8x^2+27x-14=0 equation:


Simplifying
8x2 + 27x + -14 = 0

Reorder the terms:
-14 + 27x + 8x2 = 0

Solving
-14 + 27x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
-1.75 + 3.375x + x2 = 0

Move the constant term to the right:

Add '1.75' to each side of the equation.
-1.75 + 3.375x + 1.75 + x2 = 0 + 1.75

Reorder the terms:
-1.75 + 1.75 + 3.375x + x2 = 0 + 1.75

Combine like terms: -1.75 + 1.75 = 0.00
0.00 + 3.375x + x2 = 0 + 1.75
3.375x + x2 = 0 + 1.75

Combine like terms: 0 + 1.75 = 1.75
3.375x + x2 = 1.75

The x term is 3.375x.  Take half its coefficient (1.6875).
Square it (2.84765625) and add it to both sides.

Add '2.84765625' to each side of the equation.
3.375x + 2.84765625 + x2 = 1.75 + 2.84765625

Reorder the terms:
2.84765625 + 3.375x + x2 = 1.75 + 2.84765625

Combine like terms: 1.75 + 2.84765625 = 4.59765625
2.84765625 + 3.375x + x2 = 4.59765625

Factor a perfect square on the left side:
(x + 1.6875)(x + 1.6875) = 4.59765625

Calculate the square root of the right side: 2.1442146

Break this problem into two subproblems by setting 
(x + 1.6875) equal to 2.1442146 and -2.1442146.

Subproblem 1

x + 1.6875 = 2.1442146 Simplifying x + 1.6875 = 2.1442146 Reorder the terms: 1.6875 + x = 2.1442146 Solving 1.6875 + x = 2.1442146 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.6875' to each side of the equation. 1.6875 + -1.6875 + x = 2.1442146 + -1.6875 Combine like terms: 1.6875 + -1.6875 = 0.0000 0.0000 + x = 2.1442146 + -1.6875 x = 2.1442146 + -1.6875 Combine like terms: 2.1442146 + -1.6875 = 0.4567146 x = 0.4567146 Simplifying x = 0.4567146

Subproblem 2

x + 1.6875 = -2.1442146 Simplifying x + 1.6875 = -2.1442146 Reorder the terms: 1.6875 + x = -2.1442146 Solving 1.6875 + x = -2.1442146 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.6875' to each side of the equation. 1.6875 + -1.6875 + x = -2.1442146 + -1.6875 Combine like terms: 1.6875 + -1.6875 = 0.0000 0.0000 + x = -2.1442146 + -1.6875 x = -2.1442146 + -1.6875 Combine like terms: -2.1442146 + -1.6875 = -3.8317146 x = -3.8317146 Simplifying x = -3.8317146

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4567146, -3.8317146}

See similar equations:

| (-32+24x)=14 | | 15-8x=8-x | | 162=3x+3x+3+3x+6 | | X+35=2 | | x^3+8h^2+12x-64=0 | | 3n=35 | | 12+5x=12-5x | | 8x+19=x-51 | | 3x^2+4=7 | | 5x-y=0.25 | | 3x-5(x-2)=-8+4x-12 | | X-10=-56 | | 3(44-8)=12 | | 8(9)-9+25= | | 3a+5=12+b | | 0.125(5y+64)=.25(20+2y) | | 9x-4=7x+10 | | 8(9)+25= | | 6x^5-7x^4y-24x^3y^2=0 | | -2b-8=2+4b+4+4 | | 3p[2p(p+4)-p^2]= | | 1L=m | | 10x-30=x-15 | | -s^2+4s-24=0 | | -2y-2=7y+17 | | 20-2b=4b | | 8(4x+10)=32x-9 | | Y=-180 | | 13x-18=11x+16 | | 5x-5y=-20 | | 31-9x=-12x | | (-2xy)(7xy)= |

Equations solver categories