4-x^2=-16

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


Simplifying
4 + -1x2 = -16

Solving
4 + -1x2 = -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 + -1x2 = -16 + -4

Combine like terms: 4 + -4 = 0
0 + -1x2 = -16 + -4
-1x2 = -16 + -4

Combine like terms: -16 + -4 = -20
-1x2 = -20

Divide each side by '-1'.
x2 = 20

Simplifying
x2 = 20

Take the square root of each side:
x = {-4.472135955, 4.472135955}

See similar equations:

| x+62+125=180 | | x^2+y^2+2x-14y-61=0 | | 7n-39=-6n+7(n-3) | | -5(c-2)=10 | | 16x-12y=-2 | | p(x)=2x^2-28x+90 | | 4x^2+3x^2=200 | | 5v+7=-28 | | A*3+8=16 | | 9x-15=1-5x+(-16) | | 67-v=-120 | | 7=-2+3x | | 17w-8w=36 | | (18x-22)+(22x+2)=180 | | 10z-5+2z=8-z | | 2X+3Y=-25 | | 456.00=240+0.75x | | 8505=x-(6000)(.18)-((x-6000)(.225)) | | 115=21x+2 | | 4x+2-2=38-2 | | -15=4u+5 | | [(x)(x)]-x-20=0 | | 198=12n+30 | | 10z-5+2z=8-2 | | 376+12(32)=280+15(32) | | 4x+2-2= | | 198=12+30 | | x+62=125 | | [(3x)(x)]+6x=0 | | -6+2u=-14 | | 5(10-4(-3x-4))=60x+130 | | 49y=7 |

Equations solver categories