2x^2-6x-63=0

Simple and best practice solution for 2x^2-6x-63=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 2x^2-6x-63=0 equation:


Simplifying
2x2 + -6x + -63 = 0

Reorder the terms:
-63 + -6x + 2x2 = 0

Solving
-63 + -6x + 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'.
-31.5 + -3x + x2 = 0

Move the constant term to the right:

Add '31.5' to each side of the equation.
-31.5 + -3x + 31.5 + x2 = 0 + 31.5

Reorder the terms:
-31.5 + 31.5 + -3x + x2 = 0 + 31.5

Combine like terms: -31.5 + 31.5 = 0.0
0.0 + -3x + x2 = 0 + 31.5
-3x + x2 = 0 + 31.5

Combine like terms: 0 + 31.5 = 31.5
-3x + x2 = 31.5

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 31.5 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 31.5 + 2.25

Combine like terms: 31.5 + 2.25 = 33.75
2.25 + -3x + x2 = 33.75

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 33.75

Calculate the square root of the right side: 5.809475019

Break this problem into two subproblems by setting 
(x + -1.5) equal to 5.809475019 and -5.809475019.

Subproblem 1

x + -1.5 = 5.809475019 Simplifying x + -1.5 = 5.809475019 Reorder the terms: -1.5 + x = 5.809475019 Solving -1.5 + x = 5.809475019 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 5.809475019 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 5.809475019 + 1.5 x = 5.809475019 + 1.5 Combine like terms: 5.809475019 + 1.5 = 7.309475019 x = 7.309475019 Simplifying x = 7.309475019

Subproblem 2

x + -1.5 = -5.809475019 Simplifying x + -1.5 = -5.809475019 Reorder the terms: -1.5 + x = -5.809475019 Solving -1.5 + x = -5.809475019 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -5.809475019 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -5.809475019 + 1.5 x = -5.809475019 + 1.5 Combine like terms: -5.809475019 + 1.5 = -4.309475019 x = -4.309475019 Simplifying x = -4.309475019

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.309475019, -4.309475019}

See similar equations:

| t+13=31 | | 4c^2-28c+5=0 | | ln(x+1)+ln(x+4)=ln(x+25) | | 3-10x=2+4x | | 2(525+Y+Y)=1504 | | e=16gh | | 5x^2-25x+10=0 | | 19.00+1.50x=15.00+2.75 | | 3x-7=5x-2 | | 6u-2u=32 | | 24x+3y-2z=2 | | 19-[13x-(22+7x)+11]=24x-[(15-4x)+(5x-16)] | | 2x^2+10x-54=0 | | 2d+120=12d+5d+5d | | y+4x=11x | | (4x+3)(6x-1)=9-34x | | 2(x-4)+7=6x-4(1+x) | | 5x+(-4)=3x | | .5(4-8y)=5-3y | | 0.4x^2-0.3x=0.2 | | 2x^2-12x=64 | | =x-22 | | d+e=2 | | -5-(15y-1)=2 | | 3x^2-9x=6 | | 2-0.75b=-4 | | y-5=-5(x-3) | | 14(r+1)=4(r+4)+8r | | 2(50+x+x)=242 | | 8n-16+24=129 | | 5x+6=5x+9 | | 5n^2-6n-10=15 |

Equations solver categories