8=2x^2-4

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


Simplifying
8 = 2x2 + -4

Reorder the terms:
8 = -4 + 2x2

Solving
8 = -4 + 2x2

Solving for variable 'x'.

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

Add '-2x2' to each side of the equation.
8 + -2x2 = -4 + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
8 + -2x2 = -4 + 0
8 + -2x2 = -4

Add '-8' to each side of the equation.
8 + -8 + -2x2 = -4 + -8

Combine like terms: 8 + -8 = 0
0 + -2x2 = -4 + -8
-2x2 = -4 + -8

Combine like terms: -4 + -8 = -12
-2x2 = -12

Divide each side by '-2'.
x2 = 6

Simplifying
x2 = 6

Take the square root of each side:
x = {-2.449489743, 2.449489743}

See similar equations:

| 3(2p-14)=6p-6 | | x=177+99 | | 3x^2+12=21 | | 3(2+.66666y)+-2y=6 | | y-s=w | | 3(2+.66666)+-2y=6 | | 2y+y=36 | | x=5+21 | | 36x+4y=28 | | X=1+-5y | | 10-y=11 | | 14x+7y=63 | | 16x-7=16x-9 | | 8+2m-6=7m+10-4m | | 13x-15=14x+12 | | -(4y+1)-(-3y-4)=3 | | 21x+7=22x-14 | | 8x-25=7x-14 | | x=(6)(3.14) | | -3+x-4x=-9 | | 19x+15=18x+18 | | 3x-7=4x+9 | | x-(-1.6666)=3 | | M=(6)(3.14)(x) | | x=2+.5y | | a=bc | | 10x+6=9x-10 | | 12x-15=11x+13 | | 8(3x-9)=2(12x+8) | | 4+19x-2=9x+146-6x | | -32-7=-32-9 | | 90x-6+13x=20x-5 |

Equations solver categories