8x^2+16x-14=0

Simple and best practice solution for 8x^2+16x-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+16x-14=0 equation:


Simplifying
8x2 + 16x + -14 = 0

Reorder the terms:
-14 + 16x + 8x2 = 0

Solving
-14 + 16x + 8x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-7 + 8x + 4x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + 8x + 4x2)' equal to zero and attempt to solve: Simplifying -7 + 8x + 4x2 = 0 Solving -7 + 8x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -1.75 + 2x + x2 = 0 Move the constant term to the right: Add '1.75' to each side of the equation. -1.75 + 2x + 1.75 + x2 = 0 + 1.75 Reorder the terms: -1.75 + 1.75 + 2x + x2 = 0 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + 2x + x2 = 0 + 1.75 2x + x2 = 0 + 1.75 Combine like terms: 0 + 1.75 = 1.75 2x + x2 = 1.75 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 1.75 + 1 Reorder the terms: 1 + 2x + x2 = 1.75 + 1 Combine like terms: 1.75 + 1 = 2.75 1 + 2x + x2 = 2.75 Factor a perfect square on the left side: (x + 1)(x + 1) = 2.75 Calculate the square root of the right side: 1.658312395 Break this problem into two subproblems by setting (x + 1) equal to 1.658312395 and -1.658312395.

Subproblem 1

x + 1 = 1.658312395 Simplifying x + 1 = 1.658312395 Reorder the terms: 1 + x = 1.658312395 Solving 1 + x = 1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.658312395 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.658312395 + -1 x = 1.658312395 + -1 Combine like terms: 1.658312395 + -1 = 0.658312395 x = 0.658312395 Simplifying x = 0.658312395

Subproblem 2

x + 1 = -1.658312395 Simplifying x + 1 = -1.658312395 Reorder the terms: 1 + x = -1.658312395 Solving 1 + x = -1.658312395 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.658312395 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.658312395 + -1 x = -1.658312395 + -1 Combine like terms: -1.658312395 + -1 = -2.658312395 x = -2.658312395 Simplifying x = -2.658312395

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.658312395, -2.658312395}

Solution

x = {0.658312395, -2.658312395}

See similar equations:

| 10k^2-20k+12=3 | | (2.5x(10x9))/(5x(10x3)) | | 162x-36x^2+x^3=324 | | d^2+10d-39=0 | | X+-8x=-14 | | sin(x+40)=0.7 | | -4-4v^2=-284 | | 13b-7=-46 | | 3w^2-21w+30=0 | | 10v^2+1=11 | | (x+11)+(5x+2)+(3x+5)=180 | | -3-8n^2=443 | | 8n^2-7=385 | | (z+3)(3x+5)=7 | | 5-2(4x-1)=4(5-2x) | | log(16-3x)=1 | | 2-3x-35x^2=0 | | X^2-6x+48=0 | | 6n(n+1)=3-n | | 4x-8=-4(-2x-3) | | 3p^2-7p+4=0 | | (2x^3-6x+1)-(4x^3-2x-3)= | | 4x^3+3x=x | | y+2=4(x-8) | | 11x-47=49-21x | | x^4+y^2=2xy+4 | | (5x^2-4)+(2x^2+3)-(3x^2-5)= | | 11x+47=49-21x | | y-5=3(x+4) | | 3a+5b=7 | | 10a+48=948 | | (4c^2+3c-2)+(3c^2+4c+2)= |

Equations solver categories