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)
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:

| 0=5x^2-3x-8 | | 8x+6y=-12 | | 50=-27.932+17.721lnx | | y=17.721*ln(x)-27.932 | | 50=17.721ln(x)-27.932 | | 7x/11-6=43 | | 4/3x=35 | | 9m-17=-377 | | (x+9+4)-19= | | 25-(2x-3)=7x-(x-4) | | 3x=-y+6 | | x-23=5(2x+3)-11 | | x+5+2x+3=y+y+2 | | -4(x+7)+36=11-5x | | (bx-cy)dy+(ax-by)dx=0 | | f(x)=3sin(x)-5cos(x) | | 2(x+6)-2=73-5x | | V^2-6v-16/v^2-36 | | 10-2(x+3)-3(x+4)=9 | | 2(x+6)-2=73-5 | | 5[2-(2d-4)]=2(5-3d) | | -3/y-1=-2 | | 8=6/v-2 | | 5x+2y-5+y+3x+1=360 | | 6(x+3)+15=2(x+7)+11 | | Y^2=-121 | | (6/2x-1)-(3/x-4) | | g(x)=-x^2+5x+15 | | 4r^3+32r^2-80r= | | 5/6=-x | | -2(y-2)=-6y-32 | | -w/4=6 |

Equations solver categories