5x^2-4=16

Simple and best practice solution for 5x^2-4=16 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 5x^2-4=16 equation: 


Simplifying
5x2 + -4 = 16

Reorder the terms:
-4 + 5x2 = 16

Solving
-4 + 5x2 = 16

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 5x2 = 16 + 4

Combine like terms: -4 + 4 = 0
0 + 5x2 = 16 + 4
5x2 = 16 + 4

Combine like terms: 16 + 4 = 20
5x2 = 20

Divide each side by '5'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

See similar equations:

| -27+20y=73 | | 9x^2-16y^2-18x+96y-279=0 | | 5n^2+3n-14=0 | | (2m+10)*2=8(3+m)-6 | | 5x^2-132=48 | | -4w^2+16w+16=0 | | 4x-2x+7=x+10 | | 5k-6-k=-14 | | 5x+(6x+8)+(3x+4)=180 | | 12-c=2d | | 12+-4=-100 | | A=65-100n | | -30=9x-3 | | An=-7.1-2.1n | | 13x-2[x+4]=8x+1 | | 4a-10=a+5 | | 2[x-11]=4x-6 | | 4(2a-5)=a+1 | | 5(2z-1)-2(z+4)=3(2+1) | | 2x^2-27x-14=0 | | x+(x+1)+(x+2)=48 | | x^2=376 | | 13+8(4x+3)=12 | | -4x+6=36 | | 3x+55=290 | | 6x^2+36=30x | | -1x+3=10 | | X^2+0x+2=0 | | 5b=2b+216 | | 9+6p=76 | | 3+5(4x-3)=4x | | 5x+9x-8=47 |

Equations solver categories