16x^2-64x-23=0

Simple and best practice solution for 16x^2-64x-23=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 16x^2-64x-23=0 equation:


Simplifying
16x2 + -64x + -23 = 0

Reorder the terms:
-23 + -64x + 16x2 = 0

Solving
-23 + -64x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
-1.4375 + -4x + x2 = 0

Move the constant term to the right:

Add '1.4375' to each side of the equation.
-1.4375 + -4x + 1.4375 + x2 = 0 + 1.4375

Reorder the terms:
-1.4375 + 1.4375 + -4x + x2 = 0 + 1.4375

Combine like terms: -1.4375 + 1.4375 = 0.0000
0.0000 + -4x + x2 = 0 + 1.4375
-4x + x2 = 0 + 1.4375

Combine like terms: 0 + 1.4375 = 1.4375
-4x + x2 = 1.4375

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 = 1.4375 + 4

Reorder the terms:
4 + -4x + x2 = 1.4375 + 4

Combine like terms: 1.4375 + 4 = 5.4375
4 + -4x + x2 = 5.4375

Factor a perfect square on the left side:
(x + -2)(x + -2) = 5.4375

Calculate the square root of the right side: 2.331844763

Break this problem into two subproblems by setting 
(x + -2) equal to 2.331844763 and -2.331844763.

Subproblem 1

x + -2 = 2.331844763 Simplifying x + -2 = 2.331844763 Reorder the terms: -2 + x = 2.331844763 Solving -2 + x = 2.331844763 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 = 2.331844763 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.331844763 + 2 x = 2.331844763 + 2 Combine like terms: 2.331844763 + 2 = 4.331844763 x = 4.331844763 Simplifying x = 4.331844763

Subproblem 2

x + -2 = -2.331844763 Simplifying x + -2 = -2.331844763 Reorder the terms: -2 + x = -2.331844763 Solving -2 + x = -2.331844763 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 = -2.331844763 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.331844763 + 2 x = -2.331844763 + 2 Combine like terms: -2.331844763 + 2 = -0.331844763 x = -0.331844763 Simplifying x = -0.331844763

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.331844763, -0.331844763}

See similar equations:

| -3(4x-5)+15= | | 34(x-2)= | | 5(w-3)-8w=-30 | | 5-4(3x+6)= | | -6-(-4)= | | 56x^2+15x-54=0 | | (x+5)=8 | | 5n-8=2+3n | | (7x-6)(8x+9)= | | 6z-23=-30+5z | | 9-(-5)= | | 6-21x=3 | | 4(2x+5)=3(5x-7) | | 4y+42= | | 4x-2(x-5)=10 | | -2x+3=-x+2 | | a/12=12 | | 0.07x+0.12(8000-x)=710 | | 2x+5=3(x-2) | | (4x+5)(3x+7)= | | -18a^2+25=0 | | 3x-(6x+5)=-(3x+5) | | 9=8x-8 | | 3(2x-1)-4(1+x)=2(x+3) | | 18x-1=11x-15 | | 7-x+5x-3-9x= | | 2x-1=12x-10 | | 5(3z-2)=16z | | 3z=5z+5 | | 6(x+9)=5(x-9)+x | | -x+3=-6 | | 3-(2x-1)=16 |

Equations solver categories