X^2-12X-676=0

Simple and best practice solution for X^2-12X-676=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 X^2-12X-676=0 equation:


Simplifying
X2 + -12X + -676 = 0

Reorder the terms:
-676 + -12X + X2 = 0

Solving
-676 + -12X + X2 = 0

Solving for variable 'X'.

Begin completing the square.

Move the constant term to the right:

Add '676' to each side of the equation.
-676 + -12X + 676 + X2 = 0 + 676

Reorder the terms:
-676 + 676 + -12X + X2 = 0 + 676

Combine like terms: -676 + 676 = 0
0 + -12X + X2 = 0 + 676
-12X + X2 = 0 + 676

Combine like terms: 0 + 676 = 676
-12X + X2 = 676

The X term is -12X.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12X + 36 + X2 = 676 + 36

Reorder the terms:
36 + -12X + X2 = 676 + 36

Combine like terms: 676 + 36 = 712
36 + -12X + X2 = 712

Factor a perfect square on the left side:
(X + -6)(X + -6) = 712

Calculate the square root of the right side: 26.683328128

Break this problem into two subproblems by setting 
(X + -6) equal to 26.683328128 and -26.683328128.

Subproblem 1

X + -6 = 26.683328128 Simplifying X + -6 = 26.683328128 Reorder the terms: -6 + X = 26.683328128 Solving -6 + X = 26.683328128 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + X = 26.683328128 + 6 Combine like terms: -6 + 6 = 0 0 + X = 26.683328128 + 6 X = 26.683328128 + 6 Combine like terms: 26.683328128 + 6 = 32.683328128 X = 32.683328128 Simplifying X = 32.683328128

Subproblem 2

X + -6 = -26.683328128 Simplifying X + -6 = -26.683328128 Reorder the terms: -6 + X = -26.683328128 Solving -6 + X = -26.683328128 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + X = -26.683328128 + 6 Combine like terms: -6 + 6 = 0 0 + X = -26.683328128 + 6 X = -26.683328128 + 6 Combine like terms: -26.683328128 + 6 = -20.683328128 X = -20.683328128 Simplifying X = -20.683328128

Solution

The solution to the problem is based on the solutions from the subproblems. X = {32.683328128, -20.683328128}

See similar equations:

| 5(5x-3)+11=3 | | -2[5(x-2)-10]=80 | | 0.25x^2-1/2x=1 | | 2x+3-5=-3 | | 18-(3x+5)=8 | | 10(a-1)-2(a+2)+3=13 | | 9(4-y)+2=-2(y-4)-3 | | 8x-1+4=6 | | .16(y-1)+.06y=.18y-.3 | | 7-6x/4 | | 7-4/x | | 5x-y=100 | | .75x+.05(20-x)=.10(-46) | | x^2+16=64 | | 4p+7=12+3p | | 7.6x+3=6.6x | | r=51-2r | | (4x+5)(3y-7)= | | 6(4-3)-5(4+2)=8 | | x^2-5x=2x^2+x | | 6x+3.9=53.1 | | (x^3+11x^2+18x)/(x^2-6x-16) | | .06x+.03(6000-x)=219 | | (9z^2+30z+25)/(9z^2+9z-10) | | (-2/w+4)=(-5/2w+8)+2 | | 4^(3/2) | | (t^2-16)/(t-4) | | Wxy+6=a | | 7x+10+x+20+2x=180 | | -4(x+5)=-16 | | sqrt(3x^2-3)=3 | | 12(t-5)+6t=6(3t+3)-10 |

Equations solver categories