-4x+1=8x^2

Simple and best practice solution for -4x+1=8x^2 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 -4x+1=8x^2 equation:


Simplifying
-4x + 1 = 8x2

Reorder the terms:
1 + -4x = 8x2

Solving
1 + -4x = 8x2

Solving for variable 'x'.

Combine like terms: 8x2 + -8x2 = 0
1 + -4x + -8x2 = 0

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

Divide each side by '-8'.
-0.125 + 0.5x + x2 = 0

Move the constant term to the right:

Add '0.125' to each side of the equation.
-0.125 + 0.5x + 0.125 + x2 = 0 + 0.125

Reorder the terms:
-0.125 + 0.125 + 0.5x + x2 = 0 + 0.125

Combine like terms: -0.125 + 0.125 = 0.000
0.000 + 0.5x + x2 = 0 + 0.125
0.5x + x2 = 0 + 0.125

Combine like terms: 0 + 0.125 = 0.125
0.5x + x2 = 0.125

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 0.125 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 0.125 + 0.0625

Combine like terms: 0.125 + 0.0625 = 0.1875
0.0625 + 0.5x + x2 = 0.1875

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 0.1875

Calculate the square root of the right side: 0.433012702

Break this problem into two subproblems by setting 
(x + 0.25) equal to 0.433012702 and -0.433012702.

Subproblem 1

x + 0.25 = 0.433012702 Simplifying x + 0.25 = 0.433012702 Reorder the terms: 0.25 + x = 0.433012702 Solving 0.25 + x = 0.433012702 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 0.433012702 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 0.433012702 + -0.25 x = 0.433012702 + -0.25 Combine like terms: 0.433012702 + -0.25 = 0.183012702 x = 0.183012702 Simplifying x = 0.183012702

Subproblem 2

x + 0.25 = -0.433012702 Simplifying x + 0.25 = -0.433012702 Reorder the terms: 0.25 + x = -0.433012702 Solving 0.25 + x = -0.433012702 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -0.433012702 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -0.433012702 + -0.25 x = -0.433012702 + -0.25 Combine like terms: -0.433012702 + -0.25 = -0.683012702 x = -0.683012702 Simplifying x = -0.683012702

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.183012702, -0.683012702}

See similar equations:

| x^2+20x-2825=0 | | 25-5x=6 | | 3t^2-4t-1=0 | | 7.5*sin(5x)+2.5*cos(5x)=0 | | A=3(3.14)rh | | x-a=8 | | 2x+(2x+1)=10 | | 9x-5w+5x+6y+4y+3w= | | 64=15x+x^2 | | 8x+1=8x | | 4w-10w=-30 | | 2/5(x-9/4)=3/10(7-2x) | | 16*2-30/x=-90 | | 8(3x+1)=3x-9x | | x+3x=42 | | 320*2n=100 | | 3-(2x+4)=2(x-4.5) | | 12y-82=-10 | | 2(x+4)-18=4(x-3) | | 2(x+3)-4x=3(2-x)+10 | | 2(x+3)-4x=3(2-x)+10Solveforx | | 4x-3=6x-4 | | 2(3x+1)=3x-8x | | 32-30/x=-90 | | (2x^2)/((.3-x)^2)=53.3 | | (2x^2)/((.3-x)^2) | | 3x+4=13 | | -x+3=-4 | | -6x+5=-25 | | -2x+7=-13 | | 8x-4=28 | | 17x-4=14x-7 |

Equations solver categories