5x^2-8x+120=0

Simple and best practice solution for 5x^2-8x+120=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^2-8x+120=0 equation:


Simplifying
5x2 + -8x + 120 = 0

Reorder the terms:
120 + -8x + 5x2 = 0

Solving
120 + -8x + 5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
24 + -1.6x + x2 = 0

Move the constant term to the right:

Add '-24' to each side of the equation.
24 + -1.6x + -24 + x2 = 0 + -24

Reorder the terms:
24 + -24 + -1.6x + x2 = 0 + -24

Combine like terms: 24 + -24 = 0
0 + -1.6x + x2 = 0 + -24
-1.6x + x2 = 0 + -24

Combine like terms: 0 + -24 = -24
-1.6x + x2 = -24

The x term is -1.6x.  Take half its coefficient (-0.8).
Square it (0.64) and add it to both sides.

Add '0.64' to each side of the equation.
-1.6x + 0.64 + x2 = -24 + 0.64

Reorder the terms:
0.64 + -1.6x + x2 = -24 + 0.64

Combine like terms: -24 + 0.64 = -23.36
0.64 + -1.6x + x2 = -23.36

Factor a perfect square on the left side:
(x + -0.8)(x + -0.8) = -23.36

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4.9x^2-8x+120=0 | | 7.6x=39 | | x*(x+7)=4x+28 | | 4.9h-4.6=12.2-3.1h | | 6-5m=4 | | 3(2x-5)+3=2(2x-1) | | 2(2x+3)=3(x-9)+18 | | 5m+4y-2m-y= | | 4(2x-1)=5(x-8)+15 | | xy-3z=0 | | 6m+4=24-6m | | m/8-12=34 | | 2(9-3x)=(2x-11) | | x^2-17*x+132=0 | | 2(k-4)=2(4-k) | | 4(2x+4)=6(x+4) | | 3(2x-7)=3(x+3) | | 1/2y=[(-2)^2]^3 | | 4(2+x)=2x+12 | | 6x/36xy | | x^3-24*x^2+144*x-10=0 | | 12b-13=7b+37 | | 3x+x=62 | | (x+3)-7=2(x+17)-3(x+1) | | 9a+22=88-2a | | 7x+33=110 | | (x-3)-7=2(x+17)-3(x+1) | | 5(m-5)+5m=5-m | | 5(m-5)+5=5-m | | 4(z+9)=3z | | 5(m-5)=5-m | | 12(n+5)=(15+3n) |

Equations solver categories