4(x^2-8x)-63=0

Simple and best practice solution for 4(x^2-8x)-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 4(x^2-8x)-63=0 equation:


Simplifying
4(x2 + -8x) + -63 = 0

Reorder the terms:
4(-8x + x2) + -63 = 0
(-8x * 4 + x2 * 4) + -63 = 0
(-32x + 4x2) + -63 = 0

Reorder the terms:
-63 + -32x + 4x2 = 0

Solving
-63 + -32x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-15.75 + -8x + x2 = 0

Move the constant term to the right:

Add '15.75' to each side of the equation.
-15.75 + -8x + 15.75 + x2 = 0 + 15.75

Reorder the terms:
-15.75 + 15.75 + -8x + x2 = 0 + 15.75

Combine like terms: -15.75 + 15.75 = 0.00
0.00 + -8x + x2 = 0 + 15.75
-8x + x2 = 0 + 15.75

Combine like terms: 0 + 15.75 = 15.75
-8x + x2 = 15.75

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = 15.75 + 16

Reorder the terms:
16 + -8x + x2 = 15.75 + 16

Combine like terms: 15.75 + 16 = 31.75
16 + -8x + x2 = 31.75

Factor a perfect square on the left side:
(x + -4)(x + -4) = 31.75

Calculate the square root of the right side: 5.634713835

Break this problem into two subproblems by setting 
(x + -4) equal to 5.634713835 and -5.634713835.

Subproblem 1

x + -4 = 5.634713835 Simplifying x + -4 = 5.634713835 Reorder the terms: -4 + x = 5.634713835 Solving -4 + x = 5.634713835 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 5.634713835 + 4 Combine like terms: -4 + 4 = 0 0 + x = 5.634713835 + 4 x = 5.634713835 + 4 Combine like terms: 5.634713835 + 4 = 9.634713835 x = 9.634713835 Simplifying x = 9.634713835

Subproblem 2

x + -4 = -5.634713835 Simplifying x + -4 = -5.634713835 Reorder the terms: -4 + x = -5.634713835 Solving -4 + x = -5.634713835 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -5.634713835 + 4 Combine like terms: -4 + 4 = 0 0 + x = -5.634713835 + 4 x = -5.634713835 + 4 Combine like terms: -5.634713835 + 4 = -1.634713835 x = -1.634713835 Simplifying x = -1.634713835

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.634713835, -1.634713835}

See similar equations:

| x(x+7)=(x-3)(x-1) | | 0=36-8x+4x^2 | | 5m-(3+2m)=m-(4-2m) | | 2x+15=2x+12 | | 4x^5-2x^4-20x^3+62x^2-53x+14=0 | | log[3](x+15)-log[3](x-2)=4 | | x-3/x=0 | | 3-2a=17 | | log[4](x+5)-log[4](x)=1 | | 3a^2+6a^3/3a+9a^2 | | t/4-2=9 | | 3+3m=9 | | -5v-2=-37 | | -4x^3+6x^2+4x=0 | | -k-5=-3 | | 2(a+5)=11 | | 46.5=5c-2 | | 3x+111= | | 4a+1=-31 | | 3e-3=4.2 | | 5p=43 | | -5+2x=-21 | | -4n-4=-36 | | -3z-1=2(z+7) | | -3-5n=-48 | | 4a+13=22+7a | | 3(2x-4)=9-3(x-5) | | 2(p-4)=-6 | | 4-7b=2b+11 | | 4(-6+1x)=8 | | 4w=10 | | 4(-4+3x)=-16 |

Equations solver categories