4x^2-20x+25=10

Simple and best practice solution for 4x^2-20x+25=10 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^2-20x+25=10 equation:


Simplifying
4x2 + -20x + 25 = 10

Reorder the terms:
25 + -20x + 4x2 = 10

Solving
25 + -20x + 4x2 = 10

Solving for variable 'x'.

Reorder the terms:
25 + -10 + -20x + 4x2 = 10 + -10

Combine like terms: 25 + -10 = 15
15 + -20x + 4x2 = 10 + -10

Combine like terms: 10 + -10 = 0
15 + -20x + 4x2 = 0

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

Divide each side by '4'.
3.75 + -5x + x2 = 0

Move the constant term to the right:

Add '-3.75' to each side of the equation.
3.75 + -5x + -3.75 + x2 = 0 + -3.75

Reorder the terms:
3.75 + -3.75 + -5x + x2 = 0 + -3.75

Combine like terms: 3.75 + -3.75 = 0.00
0.00 + -5x + x2 = 0 + -3.75
-5x + x2 = 0 + -3.75

Combine like terms: 0 + -3.75 = -3.75
-5x + x2 = -3.75

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -3.75 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -3.75 + 6.25

Combine like terms: -3.75 + 6.25 = 2.5
6.25 + -5x + x2 = 2.5

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 2.5

Calculate the square root of the right side: 1.58113883

Break this problem into two subproblems by setting 
(x + -2.5) equal to 1.58113883 and -1.58113883.

Subproblem 1

x + -2.5 = 1.58113883 Simplifying x + -2.5 = 1.58113883 Reorder the terms: -2.5 + x = 1.58113883 Solving -2.5 + x = 1.58113883 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 1.58113883 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 1.58113883 + 2.5 x = 1.58113883 + 2.5 Combine like terms: 1.58113883 + 2.5 = 4.08113883 x = 4.08113883 Simplifying x = 4.08113883

Subproblem 2

x + -2.5 = -1.58113883 Simplifying x + -2.5 = -1.58113883 Reorder the terms: -2.5 + x = -1.58113883 Solving -2.5 + x = -1.58113883 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -1.58113883 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -1.58113883 + 2.5 x = -1.58113883 + 2.5 Combine like terms: -1.58113883 + 2.5 = 0.91886117 x = 0.91886117 Simplifying x = 0.91886117

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.08113883, 0.91886117}

See similar equations:

| 3x+21x^2=0 | | 18x+3x^2+15=0 | | -8x^2=6 | | 0.67x+7=13 | | 3x+7x^2+21=0 | | .3(24p-66)=3p+43 | | 7x+49x^2+14=21 | | 7(y+5)=35 | | 9x-40=2x+30 | | 9x^2=12x-4 | | 6x+10x^2-8=20 | | 8x^3=-1 | | 16x^2=8x-1 | | x^2+6x+9=20 | | x^4-27x=o | | 4=3x(-3x+4) | | 10x+25x^2-45=15 | | 4w-21+22d=4.4 | | 3b^2+3b+90=0 | | 9x+3x^2+15=0 | | -19.4-9k=10 | | 5x+2x^3+7=0 | | 25-8x^2+8x= | | P(-5)=-2w^3-7w^2-15 | | 3(2x+8)=10(3x+8) | | 7(3x+10)=5(5x+10) | | 8x+3-2x=2x+7+4x | | 7-2x-8(4x-6)=1+3(5x-2)-19x | | x^2-6x= | | P(w)=-2w^3-7w^2-15 | | 8n^2-4n-18=0 | | 12x^2-23x=0 |

Equations solver categories