-5x^2+80=0

Simple and best practice solution for -5x^2+80=0 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+80=0 equation:


Simplifying
-5x2 + 80 = 0

Reorder the terms:
80 + -5x2 = 0

Solving
80 + -5x2 = 0

Solving for variable 'x'.

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

Add '-80' to each side of the equation.
80 + -80 + -5x2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -5x2 = 0 + -80
-5x2 = 0 + -80

Combine like terms: 0 + -80 = -80
-5x2 = -80

Divide each side by '-5'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

 

See similar equations:

| 3x+4y=5.2 | | 17-7x=2x-1 | | 3(2x-5)=x | | 17=4c-3 | | 104-2x=5x+13 | | 13x-8=2x-15 | | 6y^2+7y+2=0 | | 4x-17=3x+6 | | 40x^3-12x^2-4x=0 | | 3(x-6)=2(x+4) | | x^3-124=0 | | (17+a)+14= | | 6x+8=4x-10 | | -x+2y=9 | | 7(x-8)=2(x+1) | | .60xY=21 | | 8-x=-3 | | 5(10-x)-2(3x+5)=-37 | | (x-1)(x+4)-24=0 | | 4t-3+5t=25+5t | | 98z+20=38z+20 | | 30y=12y^2 | | 12-7x=192-42x | | 4=-4(3x+3)+13 | | 7y+2=8x+7z | | 9p-10=6+p | | 3(2a+13)=57 | | 17+11w=72 | | 48x^3-9x=18x | | 7x+14y-5=7 | | -(4y)+4= | | 7x-y=3 | | 2m+6.1=16.5 | | 63-2x=16x+23 | | 6k+4=19 | | -(4-y)+4= | | 103a-400=-215a+872 | | n+6n-44=3N | | (3z+1)(z+2)= | | (2x-5)(x-1)=2 | | 28=8t | | x^3+4x-5=0 | | 9-x=-3 | | -4(6n-4)+24n= | | x^3+5x-x-5=0 | | -7x+9x-5= | | 5m^2+9m=126 | | t^2-13t+40=0 | | x(x-3)=x^2+5x+7 | | -6.2=k-4.8 | | -9+1=-80 | | 2m-7=8m+3 | | c+6=14 | | 6x+9x+72=177 | | 5a(-2ab^2)(-3b^3)= | | 4.2x+0y=12.6 | | 3y^2-13y-16=0 | | 3x-6=-21 | | 8d-4d=8 | | 2.2+y=6.2 | | 3c-62=50 | | 4=-3+y | | 4(3x+8)=152 | | 4x=13+7 | | x+9x-5=75 |