4x^2-19x+4=0

Simple and best practice solution for 4x^2-19x+4=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 4x^2-19x+4=0 equation:


Simplifying
4x2 + -19x + 4 = 0

Reorder the terms:
4 + -19x + 4x2 = 0

Solving
4 + -19x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
1 + -4.75x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -4.75x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -4.75x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -4.75x + x2 = 0 + -1
-4.75x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-4.75x + x2 = -1

The x term is -4.75x.  Take half its coefficient (-2.375).
Square it (5.640625) and add it to both sides.

Add '5.640625' to each side of the equation.
-4.75x + 5.640625 + x2 = -1 + 5.640625

Reorder the terms:
5.640625 + -4.75x + x2 = -1 + 5.640625

Combine like terms: -1 + 5.640625 = 4.640625
5.640625 + -4.75x + x2 = 4.640625

Factor a perfect square on the left side:
(x + -2.375)(x + -2.375) = 4.640625

Calculate the square root of the right side: 2.154210992

Break this problem into two subproblems by setting 
(x + -2.375) equal to 2.154210992 and -2.154210992.

Subproblem 1

x + -2.375 = 2.154210992 Simplifying x + -2.375 = 2.154210992 Reorder the terms: -2.375 + x = 2.154210992 Solving -2.375 + x = 2.154210992 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = 2.154210992 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = 2.154210992 + 2.375 x = 2.154210992 + 2.375 Combine like terms: 2.154210992 + 2.375 = 4.529210992 x = 4.529210992 Simplifying x = 4.529210992

Subproblem 2

x + -2.375 = -2.154210992 Simplifying x + -2.375 = -2.154210992 Reorder the terms: -2.375 + x = -2.154210992 Solving -2.375 + x = -2.154210992 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = -2.154210992 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = -2.154210992 + 2.375 x = -2.154210992 + 2.375 Combine like terms: -2.154210992 + 2.375 = 0.220789008 x = 0.220789008 Simplifying x = 0.220789008

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.529210992, 0.220789008}

See similar equations:

| 3+8y=19 | | s+2=2 | | (x+4)(x+9)=4x | | x+30+x-23+2x-27=180 | | q(0.5)=q-20 | | 9y+-4fory=6 | | 5p+2p+15=6p+15 | | (1x^2+4x-13)-(-1x^2+4x-9)= | | 8x+2y+2=8+12y-x | | 4+7z-3=6z+10-2z | | 2.85=-2b+1.17 | | 14x+20-10=20 | | 1+8a=10-3a | | -6.5k-17.72=-5.4k-5.76+9.93 | | 60000000000000000000000x+19=50000000000000000000000x+10000000000000000000 | | -41-4x=-5-5(1+5x) | | (54w+18)+2(5-7w)=0 | | 5x-72=-2x+61 | | 12(x-7)=10x-14 | | 22x-5-15x+4=22x-3-15x+13 | | n-2=4+2n | | -4(z-4)=-8-2z | | -12.68-12.7z=7.48-3.1z | | 8x+2=12+a | | -7x-78-6x=143 | | 0.2(k+2.4)=3.2 | | 8a.3=1000 | | 0.05x+36=x | | 32=x+6x+4 | | (x+0.7)(x+1.2)=0 | | 17.55-15w=4.5w | | 9x+3i=314+6yi |

Equations solver categories