2*(x^2)-70x+485=0

Simple and best practice solution for 2*(x^2)-70x+485=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 2*(x^2)-70x+485=0 equation:


Simplifying
2(x2) + -70x + 485 = 0

Reorder the terms:
485 + -70x + 2x2 = 0

Solving
485 + -70x + 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'.
242.5 + -35x + x2 = 0

Move the constant term to the right:

Add '-242.5' to each side of the equation.
242.5 + -35x + -242.5 + x2 = 0 + -242.5

Reorder the terms:
242.5 + -242.5 + -35x + x2 = 0 + -242.5

Combine like terms: 242.5 + -242.5 = 0.0
0.0 + -35x + x2 = 0 + -242.5
-35x + x2 = 0 + -242.5

Combine like terms: 0 + -242.5 = -242.5
-35x + x2 = -242.5

The x term is -35x.  Take half its coefficient (-17.5).
Square it (306.25) and add it to both sides.

Add '306.25' to each side of the equation.
-35x + 306.25 + x2 = -242.5 + 306.25

Reorder the terms:
306.25 + -35x + x2 = -242.5 + 306.25

Combine like terms: -242.5 + 306.25 = 63.75
306.25 + -35x + x2 = 63.75

Factor a perfect square on the left side:
(x + -17.5)(x + -17.5) = 63.75

Calculate the square root of the right side: 7.984359711

Break this problem into two subproblems by setting 
(x + -17.5) equal to 7.984359711 and -7.984359711.

Subproblem 1

x + -17.5 = 7.984359711 Simplifying x + -17.5 = 7.984359711 Reorder the terms: -17.5 + x = 7.984359711 Solving -17.5 + x = 7.984359711 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '17.5' to each side of the equation. -17.5 + 17.5 + x = 7.984359711 + 17.5 Combine like terms: -17.5 + 17.5 = 0.0 0.0 + x = 7.984359711 + 17.5 x = 7.984359711 + 17.5 Combine like terms: 7.984359711 + 17.5 = 25.484359711 x = 25.484359711 Simplifying x = 25.484359711

Subproblem 2

x + -17.5 = -7.984359711 Simplifying x + -17.5 = -7.984359711 Reorder the terms: -17.5 + x = -7.984359711 Solving -17.5 + x = -7.984359711 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '17.5' to each side of the equation. -17.5 + 17.5 + x = -7.984359711 + 17.5 Combine like terms: -17.5 + 17.5 = 0.0 0.0 + x = -7.984359711 + 17.5 x = -7.984359711 + 17.5 Combine like terms: -7.984359711 + 17.5 = 9.515640289 x = 9.515640289 Simplifying x = 9.515640289

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.484359711, 9.515640289}

See similar equations:

| ((5Y+7)/3)=((2Y+5)/5)+14 | | 5LN(x+4.2)=6.2 | | 4.4m+6.4=8.8m-1.8 | | ab^3(2a-9a^2b+3b)= | | -2(6d+3)= | | 4ln(x+4.5)=3.4 | | x/2-6/x+2 | | 5y-2y+y+44=7y+50-5y | | 5(6)t-14=1 | | y^3+4y^2=9y+36 | | 8-20t^1/3=0 | | 5-24t^1/3=0 | | -3+x= | | 2+y/2 | | -3+x/2 | | 1y-8x+8y=10 | | ((x-3)/24)=((x-5)/13) | | 1/32^2/5 | | x^2/2+3x/5=(30+x)/10 | | (3/(x-2))+(4/(x+3))=(7/(x^2+x-6)) | | -3x+3=2(3-x) | | 70x^2+280x+70=0 | | ((17+y)/y)+((32+y)/y)=149 | | (7x/6)+(1/2)=x-(1/2) | | -4x^2+6x+9=0 | | .7x^2=2.8x+0.7 | | 2(2x^2+6x+3)= | | 5(z-7)+7z=5-3z | | r+p=9s-r | | x-7(2x-1)=2(6-5x)-13 | | (y^4x+y^2+4)(y^2+8)= | | 2ln(x+4)=-4 |

Equations solver categories