2x^2-19x+16=0

Simple and best practice solution for 2x^2-19x+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 2x^2-19x+16=0 equation:


Simplifying
2x2 + -19x + 16 = 0

Reorder the terms:
16 + -19x + 2x2 = 0

Solving
16 + -19x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
8 + -9.5x + x2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -9.5x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -9.5x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -9.5x + x2 = 0 + -8
-9.5x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-9.5x + x2 = -8

The x term is -9.5x.  Take half its coefficient (-4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
-9.5x + 22.5625 + x2 = -8 + 22.5625

Reorder the terms:
22.5625 + -9.5x + x2 = -8 + 22.5625

Combine like terms: -8 + 22.5625 = 14.5625
22.5625 + -9.5x + x2 = 14.5625

Factor a perfect square on the left side:
(x + -4.75)(x + -4.75) = 14.5625

Calculate the square root of the right side: 3.816084381

Break this problem into two subproblems by setting 
(x + -4.75) equal to 3.816084381 and -3.816084381.

Subproblem 1

x + -4.75 = 3.816084381 Simplifying x + -4.75 = 3.816084381 Reorder the terms: -4.75 + x = 3.816084381 Solving -4.75 + x = 3.816084381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + x = 3.816084381 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + x = 3.816084381 + 4.75 x = 3.816084381 + 4.75 Combine like terms: 3.816084381 + 4.75 = 8.566084381 x = 8.566084381 Simplifying x = 8.566084381

Subproblem 2

x + -4.75 = -3.816084381 Simplifying x + -4.75 = -3.816084381 Reorder the terms: -4.75 + x = -3.816084381 Solving -4.75 + x = -3.816084381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + x = -3.816084381 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + x = -3.816084381 + 4.75 x = -3.816084381 + 4.75 Combine like terms: -3.816084381 + 4.75 = 0.933915619 x = 0.933915619 Simplifying x = 0.933915619

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.566084381, 0.933915619}

See similar equations:

| 1x+8(y)=x | | 257x+8(y)=x | | 129x+8(y)=x | | 4x+1=x+3 | | (x-21)(x+21)=0 | | (7x+1)(8x)= | | -6j-4+2j=16 | | -4(6x+3)=-3x-6 | | 33x+8(y)=x | | 32x+8(y)=x | | 5x+8(y)=x | | 5x+4(y)=x | | 5x+2(y)=x | | 5v^2-2=-3v | | 14x+(20-y)=500 | | 28x+4-12x+15=-24 | | AP=B(P+C) | | 12x-6=12+x | | 3(4x+1)=8-5(4x+3) | | 24+456=567+23 | | 13-19x=137-37 | | 24+456= | | 15x+(20-y)=500 | | 4x^2+7x+12=0 | | 2y-4=16 | | 3.649+12.3r=146.329 | | 3x^2+14X+3=0 | | 4(x-1)-(x-3)=10 | | 9z-5=4 | | (x-2)(2x+1)=5 | | 11=18x | | -8.38r+10.71=131.382 |

Equations solver categories