2x^2-20x+40=

Simple and best practice solution for 2x^2-20x+40= 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^2-20x+40= equation:


Simplifying
2x2 + -20x + 40 = 0

Reorder the terms:
40 + -20x + 2x2 = 0

Solving
40 + -20x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(20 + -10x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(20 + -10x + x2)' equal to zero and attempt to solve: Simplifying 20 + -10x + x2 = 0 Solving 20 + -10x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-20' to each side of the equation. 20 + -10x + -20 + x2 = 0 + -20 Reorder the terms: 20 + -20 + -10x + x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -10x + x2 = 0 + -20 -10x + x2 = 0 + -20 Combine like terms: 0 + -20 = -20 -10x + x2 = -20 The x term is -10x. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10x + 25 + x2 = -20 + 25 Reorder the terms: 25 + -10x + x2 = -20 + 25 Combine like terms: -20 + 25 = 5 25 + -10x + x2 = 5 Factor a perfect square on the left side: (x + -5)(x + -5) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x + -5) equal to 2.236067978 and -2.236067978.

Subproblem 1

x + -5 = 2.236067978 Simplifying x + -5 = 2.236067978 Reorder the terms: -5 + x = 2.236067978 Solving -5 + x = 2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 2.236067978 + 5 Combine like terms: -5 + 5 = 0 0 + x = 2.236067978 + 5 x = 2.236067978 + 5 Combine like terms: 2.236067978 + 5 = 7.236067978 x = 7.236067978 Simplifying x = 7.236067978

Subproblem 2

x + -5 = -2.236067978 Simplifying x + -5 = -2.236067978 Reorder the terms: -5 + x = -2.236067978 Solving -5 + x = -2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -2.236067978 + 5 Combine like terms: -5 + 5 = 0 0 + x = -2.236067978 + 5 x = -2.236067978 + 5 Combine like terms: -2.236067978 + 5 = 2.763932022 x = 2.763932022 Simplifying x = 2.763932022

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.236067978, 2.763932022}

Solution

x = {7.236067978, 2.763932022}

See similar equations:

| 9x+9=9(x+5) | | 3x(9x^2-4x+5)=x | | (4a-3b)(5a+7b)= | | x+56=138 | | 0.10(y-2)+0.06y=0.20y-0.03(20) | | -3.3+(-27.3+10.6)=0 | | 0.70x+0.25(140)=0.35(30) | | 15+2+9x+20=180 | | 9x^2+10x-9=0 | | 15+2=9x+20 | | x^2-16x+53=0 | | 15+2=9x | | p(x)=90-3x | | 363=96L+W | | -2+7(4-9)= | | x^2-12x+33=0 | | 4x^2-17x+25=2x+4 | | x^3-2x^2-5x-12=0 | | 2x+2(4)=24ft | | (x+3)2x=24 | | 2x(x+3)=24 | | (5v-1)x(4v+6w-5)= | | -6(x-3)+4=22 | | (5v-1)(4v+6w-5)= | | 9-3x=17+5x | | 3x^2-10xy+3y^2= | | 5x-1=2x+8 | | -2(3x-2)=2x | | 20x-5=40x+10 | | 24x^2-7x+6=0 | | 11c=8c+18 | | -4y+10=-2(4y+7) |

Equations solver categories