36x+4x*4x+81=x*x

Simple and best practice solution for 36x+4x*4x+81=x*x 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 36x+4x*4x+81=x*x equation:


Simplifying
36x + 4x * 4x + 81 = x * x

Reorder the terms for easier multiplication:
36x + 4 * 4x * x + 81 = x * x

Multiply 4 * 4
36x + 16x * x + 81 = x * x

Multiply x * x
36x + 16x2 + 81 = x * x

Reorder the terms:
81 + 36x + 16x2 = x * x

Multiply x * x
81 + 36x + 16x2 = x2

Solving
81 + 36x + 16x2 = x2

Solving for variable 'x'.

Combine like terms: 16x2 + -1x2 = 15x2
81 + 36x + 15x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
81 + 36x + 15x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(27 + 12x + 5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(27 + 12x + 5x2)' equal to zero and attempt to solve: Simplifying 27 + 12x + 5x2 = 0 Solving 27 + 12x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 5.4 + 2.4x + x2 = 0 Move the constant term to the right: Add '-5.4' to each side of the equation. 5.4 + 2.4x + -5.4 + x2 = 0 + -5.4 Reorder the terms: 5.4 + -5.4 + 2.4x + x2 = 0 + -5.4 Combine like terms: 5.4 + -5.4 = 0.0 0.0 + 2.4x + x2 = 0 + -5.4 2.4x + x2 = 0 + -5.4 Combine like terms: 0 + -5.4 = -5.4 2.4x + x2 = -5.4 The x term is 2.4x. Take half its coefficient (1.2). Square it (1.44) and add it to both sides. Add '1.44' to each side of the equation. 2.4x + 1.44 + x2 = -5.4 + 1.44 Reorder the terms: 1.44 + 2.4x + x2 = -5.4 + 1.44 Combine like terms: -5.4 + 1.44 = -3.96 1.44 + 2.4x + x2 = -3.96 Factor a perfect square on the left side: (x + 1.2)(x + 1.2) = -3.96 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 5x-7(-4x-6)=-156 | | (2/3)x=-(2/3 | | 3cosx-16sinx=0 | | (2/3 | | n+12-18=26 | | 2x^2-10=8 | | 8+6p-3=47-5 | | 5x-(-4-6)=-156 | | r/98 | | -.21x-.56=4.48 | | 50*x=9-x | | -4Y=-16/3 | | 5b+8c+4p= | | n^2/5=5 | | 25=x-19 | | 5x-7(-4-6)=156 | | 5n-10=3n+6 | | 2/3x-16=9 | | k^2=51 | | 2/3-5/8= | | g(-2/5)=7/21 | | 6/30 | | 100=4x-5(-3x+18) | | 9999999999999999999+99999999999999999= | | 12z+z^2=48 | | x+(x+6)+(x+8)=95 | | f^2-11f+30=0 | | 23/4-11/6= | | 32.5/9 | | 85+69+(6x+22)(x+37)=180 | | v^2=45 | | 2(10)(10)+2(12)(10)+2(10)(12)=A |

Equations solver categories