6.75*x^2-170*x+800=0

Simple and best practice solution for 6.75*x^2-170*x+800=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 6.75*x^2-170*x+800=0 equation:


Simplifying
6.75x2 + -170x + 800 = 0

Reorder the terms:
800 + -170x + 6.75x2 = 0

Solving
800 + -170x + 6.75x2 = 0

Solving for variable 'x'.

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

Divide each side by '6.75'.
118.5185185 + -25.18518519x + x2 = 0

Move the constant term to the right:

Add '-118.5185185' to each side of the equation.
118.5185185 + -25.18518519x + -118.5185185 + x2 = 0 + -118.5185185

Reorder the terms:
118.5185185 + -118.5185185 + -25.18518519x + x2 = 0 + -118.5185185

Combine like terms: 118.5185185 + -118.5185185 = 0.0000000
0.0000000 + -25.18518519x + x2 = 0 + -118.5185185
-25.18518519x + x2 = 0 + -118.5185185

Combine like terms: 0 + -118.5185185 = -118.5185185
-25.18518519x + x2 = -118.5185185

The x term is -25.18518519x.  Take half its coefficient (-12.5925926).
Square it (158.5733884) and add it to both sides.

Add '158.5733884' to each side of the equation.
-25.18518519x + 158.5733884 + x2 = -118.5185185 + 158.5733884

Reorder the terms:
158.5733884 + -25.18518519x + x2 = -118.5185185 + 158.5733884

Combine like terms: -118.5185185 + 158.5733884 = 40.0548699
158.5733884 + -25.18518519x + x2 = 40.0548699

Factor a perfect square on the left side:
(x + -12.5925926)(x + -12.5925926) = 40.0548699

Calculate the square root of the right side: 6.32889168

Break this problem into two subproblems by setting 
(x + -12.5925926) equal to 6.32889168 and -6.32889168.

Subproblem 1

x + -12.5925926 = 6.32889168 Simplifying x + -12.5925926 = 6.32889168 Reorder the terms: -12.5925926 + x = 6.32889168 Solving -12.5925926 + x = 6.32889168 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5925926' to each side of the equation. -12.5925926 + 12.5925926 + x = 6.32889168 + 12.5925926 Combine like terms: -12.5925926 + 12.5925926 = 0.0000000 0.0000000 + x = 6.32889168 + 12.5925926 x = 6.32889168 + 12.5925926 Combine like terms: 6.32889168 + 12.5925926 = 18.92148428 x = 18.92148428 Simplifying x = 18.92148428

Subproblem 2

x + -12.5925926 = -6.32889168 Simplifying x + -12.5925926 = -6.32889168 Reorder the terms: -12.5925926 + x = -6.32889168 Solving -12.5925926 + x = -6.32889168 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5925926' to each side of the equation. -12.5925926 + 12.5925926 + x = -6.32889168 + 12.5925926 Combine like terms: -12.5925926 + 12.5925926 = 0.0000000 0.0000000 + x = -6.32889168 + 12.5925926 x = -6.32889168 + 12.5925926 Combine like terms: -6.32889168 + 12.5925926 = 6.26370092 x = 6.26370092 Simplifying x = 6.26370092

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.92148428, 6.26370092}

See similar equations:

| 3x/7-x=2x-10 | | 2*ln*3x=4 | | 4/7x-6=2 | | (5x)/(b)-(9x)/(c)=a | | 3(1.5n-6.3)+0.5=4(n+1.1) | | 9y-y^2= | | X+11+8x=20 | | A+B+C=180(forB) | | y=3x^8-4x^7+11x^6-4x^5+15 | | 6(2y-5)=10-4(y-10) | | 8/25= | | 20g^2+23g=0 | | 18x^2-36x=0 | | 7900=600x+0 | | 3=1-x | | 5-3/7a=26 | | -18=5/9(f-32) | | 2x-9+9x=4+6x+17 | | Y=600(8)+0 | | 14z^6-12z^4/(2z^3)= | | 3x=2-4x | | (3x^2)+x=10 | | 16-6t=3t | | 2x(xyz-4y)= | | 5x+24=9x+8 | | -4q+7m-6= | | 8x=26-5x | | 4(x-5)+2=42 | | 7(4w-5)-9(3w+4)=0 | | 24d-40de=x | | 10/c=81/70 | | 4/5S=108-S |

Equations solver categories