x(2x-3)=64

Simple and best practice solution for x(2x-3)=64 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(2x-3)=64 equation:


Simplifying
x(2x + -3) = 64

Reorder the terms:
x(-3 + 2x) = 64
(-3 * x + 2x * x) = 64
(-3x + 2x2) = 64

Solving
-3x + 2x2 = 64

Solving for variable 'x'.

Reorder the terms:
-64 + -3x + 2x2 = 64 + -64

Combine like terms: 64 + -64 = 0
-64 + -3x + 2x2 = 0

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

Divide each side by '2'.
-32 + -1.5x + x2 = 0

Move the constant term to the right:

Add '32' to each side of the equation.
-32 + -1.5x + 32 + x2 = 0 + 32

Reorder the terms:
-32 + 32 + -1.5x + x2 = 0 + 32

Combine like terms: -32 + 32 = 0
0 + -1.5x + x2 = 0 + 32
-1.5x + x2 = 0 + 32

Combine like terms: 0 + 32 = 32
-1.5x + x2 = 32

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 32 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 32 + 0.5625

Combine like terms: 32 + 0.5625 = 32.5625
0.5625 + -1.5x + x2 = 32.5625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 32.5625

Calculate the square root of the right side: 5.706356105

Break this problem into two subproblems by setting 
(x + -0.75) equal to 5.706356105 and -5.706356105.

Subproblem 1

x + -0.75 = 5.706356105 Simplifying x + -0.75 = 5.706356105 Reorder the terms: -0.75 + x = 5.706356105 Solving -0.75 + x = 5.706356105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 5.706356105 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 5.706356105 + 0.75 x = 5.706356105 + 0.75 Combine like terms: 5.706356105 + 0.75 = 6.456356105 x = 6.456356105 Simplifying x = 6.456356105

Subproblem 2

x + -0.75 = -5.706356105 Simplifying x + -0.75 = -5.706356105 Reorder the terms: -0.75 + x = -5.706356105 Solving -0.75 + x = -5.706356105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -5.706356105 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -5.706356105 + 0.75 x = -5.706356105 + 0.75 Combine like terms: -5.706356105 + 0.75 = -4.956356105 x = -4.956356105 Simplifying x = -4.956356105

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.456356105, -4.956356105}

See similar equations:

| 6x+ay=18 | | 8w=16/3 | | 0=ln(4x-9) | | x^2+15+4x=0 | | 1/3w-1/5=1/15w | | 5x-y=y | | 7w/6=35 | | -2x-8=6x-48 | | Y=0.95x+3 | | 125x^3-64y^3=0 | | 5x-5(1+7x)=85 | | R^3-10t-39=0 | | 4m+17=2m-11 | | -5x-6y=-8 | | 5x^2+25x-48=0 | | _x1/3=6/11 | | 1.2x-1.4=0.8x | | h(t)=-16t+40+5 | | 10=4a-9 | | V=13(3.14)(10)2(16) | | 4.14-3.34x=2x-2.001 | | 3x+4=2(x+1)-1 | | 6x^2=-16x | | P-74=-19+2p-p | | 0=-15t^2+44t-24 | | 36x^2=144 | | 4(-5.25+3x)=39 | | 36a^4+27a^3b=0 | | 2X=(33604) | | -12n-(-n)+(-20)=-9 | | 6m+(-4)=2(m+2)+4m | | 15=-3/5x |

Equations solver categories