2x^2+5=8

Simple and best practice solution for 2x^2+5=8 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 2x^2+5=8 equation:


Simplifying
2x2 + 5 = 8

Reorder the terms:
5 + 2x2 = 8

Solving
5 + 2x2 = 8

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 2x2 = 8 + -5

Combine like terms: 5 + -5 = 0
0 + 2x2 = 8 + -5
2x2 = 8 + -5

Combine like terms: 8 + -5 = 3
2x2 = 3

Divide each side by '2'.
x2 = 1.5

Simplifying
x2 = 1.5

Take the square root of each side:
x = {-1.224744871, 1.224744871}

See similar equations:

| 5n=10n+10 | | 5(-5b+2)=-24-8b | | -4(r+6)=.63 | | (4-5i)(4+1)= | | x^2-4-11=0 | | .09x+.10(26000+3x)=27650 | | (30w^2)+w=20 | | 9x^2/3-71x^1/3-8 | | -6x=x-7b | | 8x-3=196+x | | 2(10)-5y=20 | | 14v=24v-10 | | 22=8-5p+4 | | r/-4=2 | | 1+2x-4=15 | | .70x+.30(80)=.60(x+80) | | 3x-13/3y=-5 | | 10=7-4r-1 | | 6(v+2)-2v=2(2v+2)-13 | | 29+56=27x | | 2(x-7.50)/3=40 | | 0.25x^2=4-x | | -54(r+6)=-63 | | 55=15+x | | 40-6x=-4(1-4x) | | 2/3c-12=7 | | 2w^2+32=0 | | 2/5--1/4 | | -4(r+r)=-63 | | (25x/5)-7x=12 | | x/45=1/450 | | (20*x^5*y)/(5*x^3*y^3) |

Equations solver categories