8x^2+32x-16=0

Simple and best practice solution for 8x^2+32x-16=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+32x-16=0 equation:


Simplifying
8x2 + 32x + -16 = 0

Reorder the terms:
-16 + 32x + 8x2 = 0

Solving
-16 + 32x + 8x2 = 0

Solving for variable 'x'.

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

Ignore the factor 8.

Subproblem 1

Set the factor '(-2 + 4x + x2)' equal to zero and attempt to solve: Simplifying -2 + 4x + x2 = 0 Solving -2 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + 4x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + 4x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 4x + x2 = 0 + 2 4x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 4x + x2 = 2 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 2 + 4 Reorder the terms: 4 + 4x + x2 = 2 + 4 Combine like terms: 2 + 4 = 6 4 + 4x + x2 = 6 Factor a perfect square on the left side: (x + 2)(x + 2) = 6 Calculate the square root of the right side: 2.449489743 Break this problem into two subproblems by setting (x + 2) equal to 2.449489743 and -2.449489743.

Subproblem 1

x + 2 = 2.449489743 Simplifying x + 2 = 2.449489743 Reorder the terms: 2 + x = 2.449489743 Solving 2 + x = 2.449489743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 2.449489743 + -2 Combine like terms: 2 + -2 = 0 0 + x = 2.449489743 + -2 x = 2.449489743 + -2 Combine like terms: 2.449489743 + -2 = 0.449489743 x = 0.449489743 Simplifying x = 0.449489743

Subproblem 2

x + 2 = -2.449489743 Simplifying x + 2 = -2.449489743 Reorder the terms: 2 + x = -2.449489743 Solving 2 + x = -2.449489743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -2.449489743 + -2 Combine like terms: 2 + -2 = 0 0 + x = -2.449489743 + -2 x = -2.449489743 + -2 Combine like terms: -2.449489743 + -2 = -4.449489743 x = -4.449489743 Simplifying x = -4.449489743

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.449489743, -4.449489743}

Solution

x = {0.449489743, -4.449489743}

See similar equations:

| 120-7x=29x+24 | | 5y-12=40-4y | | 9x+15=4x+155 | | 15=40-8y | | 12-8=50-22 | | x^3-9x^2+27x=0 | | 4+(7-1*4)+3*2+(8-1)= | | 6(y-7)=25 | | 11-7x=147-35x | | N-9=-1 | | -66-10=7x+19 | | 7y+13=31 | | 5x^2-90x-520=0 | | 7+4p=2p+8 | | 7+4p=2p+28 | | 4x+77=7x-7 | | x=15+(6/15+72) | | x=6/15+6/15+2/15+1/15+(6/15+72) | | 4(15p+6)=15(4p+16) | | 3(5x-7)=2x+10 | | (x+20)= | | 7(4+p)=28 | | (2+-1y)(6+25y)=0 | | 5x^3+14x^2+7x-2=0 | | 6-9x=166-44x | | 7+4p=28 | | 1-(x+5)=3(x-2)+4x | | 0.994=1-1000*x | | 152x-5x=4x+17 | | 2(5x^2+12xy)= | | c+30=5 | | 7x+16=3x+40 |

Equations solver categories