x^2-2x=54

Simple and best practice solution for x^2-2x=54 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^2-2x=54 equation:


Simplifying
x2 + -2x = 54

Reorder the terms:
-2x + x2 = 54

Solving
-2x + x2 = 54

Solving for variable 'x'.

Reorder the terms:
-54 + -2x + x2 = 54 + -54

Combine like terms: 54 + -54 = 0
-54 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '54' to each side of the equation.
-54 + -2x + 54 + x2 = 0 + 54

Reorder the terms:
-54 + 54 + -2x + x2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + -2x + x2 = 0 + 54
-2x + x2 = 0 + 54

Combine like terms: 0 + 54 = 54
-2x + x2 = 54

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 54 + 1

Reorder the terms:
1 + -2x + x2 = 54 + 1

Combine like terms: 54 + 1 = 55
1 + -2x + x2 = 55

Factor a perfect square on the left side:
(x + -1)(x + -1) = 55

Calculate the square root of the right side: 7.416198487

Break this problem into two subproblems by setting 
(x + -1) equal to 7.416198487 and -7.416198487.

Subproblem 1

x + -1 = 7.416198487 Simplifying x + -1 = 7.416198487 Reorder the terms: -1 + x = 7.416198487 Solving -1 + x = 7.416198487 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 7.416198487 + 1 Combine like terms: -1 + 1 = 0 0 + x = 7.416198487 + 1 x = 7.416198487 + 1 Combine like terms: 7.416198487 + 1 = 8.416198487 x = 8.416198487 Simplifying x = 8.416198487

Subproblem 2

x + -1 = -7.416198487 Simplifying x + -1 = -7.416198487 Reorder the terms: -1 + x = -7.416198487 Solving -1 + x = -7.416198487 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -7.416198487 + 1 Combine like terms: -1 + 1 = 0 0 + x = -7.416198487 + 1 x = -7.416198487 + 1 Combine like terms: -7.416198487 + 1 = -6.416198487 x = -6.416198487 Simplifying x = -6.416198487

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.416198487, -6.416198487}

See similar equations:

| 9=z-[-5] | | -33=9x+3 | | 7(7k+6)=91 | | -4y=-52 | | 15k=-120 | | -88=4(-7-3x) | | 3(X+6)-7=11 | | 66=2l+2*7 | | -(7z+10)=5z | | 3y+2xy=10 | | 7=-7(3+m) | | 64k^4= | | (X+4)(5x+1)= | | x+1=x^2-25+25x | | 9x^2=4x-1 | | 4(w-15)-w=63+w | | x^2+5x-138=0 | | x+1=x^2-25-25x | | -49-6m=5+10(1-7m) | | 2x+18+3x-18=55 | | 4a-8=4-6a | | 17.3=3.2+x | | X+8=28-3x | | (5y+1)(2y-7)= | | -42=7-7x | | 5g+3=2g+9 | | 2(2x-70)=-(3x-35) | | -9x-45=-3x+87 | | 1=x(1-1.1) | | 3+x*4=-x*8 | | 4x^2+32x+1044=0 | | x^2+16x+10=7x-4 |

Equations solver categories