4x^2-8+25=81

Simple and best practice solution for 4x^2-8+25=81 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^2-8+25=81 equation: 


Simplifying
4x2 + -8 + 25 = 81

Reorder the terms:
-8 + 25 + 4x2 = 81

Combine like terms: -8 + 25 = 17
17 + 4x2 = 81

Solving
17 + 4x2 = 81

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-17' to each side of the equation.
17 + -17 + 4x2 = 81 + -17

Combine like terms: 17 + -17 = 0
0 + 4x2 = 81 + -17
4x2 = 81 + -17

Combine like terms: 81 + -17 = 64
4x2 = 64

Divide each side by '4'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

See similar equations:

| 6(2x+y)+2y-12x= | | -107=7x+6(3x+3) | | 2d^2-32=-32 | | 8.3=3-2.5c | | 17p=3 | | x^2-13x+42.25= | | 312.8z+(kz^2)=37223 | | X=1/2(20) | | 4x+8=7-2x | | 12x=-x+121 | | -48=4d | | kz^2+312.8z=37223 | | x^2+5x+6.25= | | 3ft/2sec=100ft/xsec | | 2z^2+312.8z=37223 | | 2(6x-10)=7 | | (.5x+5)+(x-1)+x=169 | | -7=1+2/3 | | n/6=24 | | 3cosx+sinx=0 | | 7x-10+13x-10=360 | | 67/100=100/x | | 7x+1-x=9 | | t=V8K/g | | M+7m-4m+8= | | 65+3x=-35-x | | -2(6-10x)=5(2x-6) | | -17+13-X=18 | | -2(x-1)=x+1 | | 3X-8+5X+2=180 | | -10X+1X=6 | | 6y(3-8)=52+38 |

Equations solver categories