4x^2+81=36x

Simple and best practice solution for 4x^2+81=36x 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 4x^2+81=36x equation:


Simplifying
4x2 + 81 = 36x

Reorder the terms:
81 + 4x2 = 36x

Solving
81 + 4x2 = 36x

Solving for variable 'x'.

Reorder the terms:
81 + -36x + 4x2 = 36x + -36x

Combine like terms: 36x + -36x = 0
81 + -36x + 4x2 = 0

Factor a trinomial.
(9 + -2x)(9 + -2x) = 0

Subproblem 1

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Subproblem 2

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Solution

x = {4.5, 4.5}

See similar equations:

| 12(x+2)=-4(x+2) | | 5x+20=9x-6 | | 5x+10=90 | | -16(x-1)=4(x+9) | | 3z^2-4z-1=0 | | 12(x+3)=-3(x-27) | | 4(x-2)=20 | | 2x+12=20x-16 | | 2n-8=5n-24 | | 7p=11zp+4 | | y-8=13 | | x*24*38=152 | | 23x-12=16x+51 | | 8y+22x=135 | | 26x+31=22x+59 | | 26x+31=22x*59 | | 19x+26=25x+56 | | 65-3x=6x+21 | | 3(x-5)=-4x+62 | | 4n+8=n+29 | | 6a+14=62 | | 11-9x=101-30x | | 5c-5=2c+7 | | -121-8x=10x-23 | | x^2=-(x^2) | | 2x-3=2x+4 | | 13-9x=53-37x | | 3x+15=10x-15 | | 7x-14=9x | | 83-3x=3x+16 | | 0p^2+0(40)=0p | | x^3-5x-2=0 |

Equations solver categories