7X^2+5=18

Simple and best practice solution for 7X^2+5=18 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 7X^2+5=18 equation:


Simplifying
7X2 + 5 = 18

Reorder the terms:
5 + 7X2 = 18

Solving
5 + 7X2 = 18

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 + 7X2 = 18 + -5

Combine like terms: 5 + -5 = 0
0 + 7X2 = 18 + -5
7X2 = 18 + -5

Combine like terms: 18 + -5 = 13
7X2 = 13

Divide each side by '7'.
X2 = 1.857142857

Simplifying
X2 = 1.857142857

Take the square root of each side:
X = {-1.362770288, 1.362770288}

See similar equations:

| 6x+21=2x+57 | | 8-7x=163-42x | | 43-5x=13x+21 | | 2/5+6/7 | | 3x(2x+7)=0 | | -50=5+5x | | (123.2/112)*10400 | | 28+7x=7 | | Ln(x+1)-lnx=0 | | 6x+10=-80 | | 5x+14=-76 | | 5/8+11/12 | | 10/11-5/9 | | (6x^2)+21x=0 | | 18000/5280 | | 7/10-8/15 | | 7+-6=-12 | | (8x+z)(8x-z)= | | 6t=2t+12 | | 3/8+7/12 | | 2over-4= | | 2/5+3/8 | | 8a-3a+9a= | | 3(x+1)-5x=-8-(1+x) | | (116.6/105.3)100-100 | | 5(3n-8)=-3-4(8-5n) | | 14-6x=-22 | | 5z-14=1+2z | | 3(x-8)+4x=5x-1 | | 22h+40=-15h-80 | | 4t-24=27+5t | | 4x-4(x-4)=-8x+40 |

Equations solver categories