5x^2-20x+14=0

Simple and best practice solution for 5x^2-20x+14=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 5x^2-20x+14=0 equation:


Simplifying
5x2 + -20x + 14 = 0

Reorder the terms:
14 + -20x + 5x2 = 0

Solving
14 + -20x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
2.8 + -4x + x2 = 0

Move the constant term to the right:

Add '-2.8' to each side of the equation.
2.8 + -4x + -2.8 + x2 = 0 + -2.8

Reorder the terms:
2.8 + -2.8 + -4x + x2 = 0 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + -4x + x2 = 0 + -2.8
-4x + x2 = 0 + -2.8

Combine like terms: 0 + -2.8 = -2.8
-4x + x2 = -2.8

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 = -2.8 + 4

Reorder the terms:
4 + -4x + x2 = -2.8 + 4

Combine like terms: -2.8 + 4 = 1.2
4 + -4x + x2 = 1.2

Factor a perfect square on the left side:
(x + -2)(x + -2) = 1.2

Calculate the square root of the right side: 1.095445115

Break this problem into two subproblems by setting 
(x + -2) equal to 1.095445115 and -1.095445115.

Subproblem 1

x + -2 = 1.095445115 Simplifying x + -2 = 1.095445115 Reorder the terms: -2 + x = 1.095445115 Solving -2 + x = 1.095445115 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 = 1.095445115 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.095445115 + 2 x = 1.095445115 + 2 Combine like terms: 1.095445115 + 2 = 3.095445115 x = 3.095445115 Simplifying x = 3.095445115

Subproblem 2

x + -2 = -1.095445115 Simplifying x + -2 = -1.095445115 Reorder the terms: -2 + x = -1.095445115 Solving -2 + x = -1.095445115 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 = -1.095445115 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.095445115 + 2 x = -1.095445115 + 2 Combine like terms: -1.095445115 + 2 = 0.904554885 x = 0.904554885 Simplifying x = 0.904554885

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.095445115, 0.904554885}

See similar equations:

| 6.9x+2.9=4.4x+10.9 | | 5x^2-20+14=0 | | -3.5x-10=8.2 | | 3(x-5)+2x=5x-7 | | 8y-14.5=4.7 | | 3.4x+3.4=11.9 | | 9-.5Q=-16+2Q | | hbt=2pi | | 0.48x+0.72(120-x)=0.66(120) | | 4(x+2)+11-4=2x+3 | | -0.186+11.2=12.856 | | 1.2a-3.65=-2.57 | | 3x-4=21-5x | | 2+8x=4-5 | | (-1/5)^3+2q^2+160q-200=0 | | 9*(-7/3) | | 160q+2q^2-(1/5)^3-200=0 | | x^2-9=5x+5 | | -10-2=2+6x | | 6x+9y+(-9y)+(-8x)= | | 9z-25=0 | | 12*27=62 | | 12*25=62 | | 12*23=62 | | 5(u-2)-8u=-22 | | 2L+2(L-5)=94 | | (3/5)q^2-4q+160=0 | | ((a-b)(a-b))+2(a-b)=0 | | 8x+4(4x-3)=4(6x+40)-4 | | (a-b)2+2(a-b)=0 | | 7-3*15=15+15 | | 77-8(-3)= |

Equations solver categories