-t^2+5t-5=0

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


Simplifying
-1t2 + 5t + -5 = 0

Reorder the terms:
-5 + 5t + -1t2 = 0

Solving
-5 + 5t + -1t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
5 + -5t + t2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -5t + -5 + t2 = 0 + -5

Reorder the terms:
5 + -5 + -5t + t2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -5t + t2 = 0 + -5
-5t + t2 = 0 + -5

Combine like terms: 0 + -5 = -5
-5t + t2 = -5

The t term is -5t.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5t + 6.25 + t2 = -5 + 6.25

Reorder the terms:
6.25 + -5t + t2 = -5 + 6.25

Combine like terms: -5 + 6.25 = 1.25
6.25 + -5t + t2 = 1.25

Factor a perfect square on the left side:
(t + -2.5)(t + -2.5) = 1.25

Calculate the square root of the right side: 1.118033989

Break this problem into two subproblems by setting 
(t + -2.5) equal to 1.118033989 and -1.118033989.

Subproblem 1

t + -2.5 = 1.118033989 Simplifying t + -2.5 = 1.118033989 Reorder the terms: -2.5 + t = 1.118033989 Solving -2.5 + t = 1.118033989 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + t = 1.118033989 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + t = 1.118033989 + 2.5 t = 1.118033989 + 2.5 Combine like terms: 1.118033989 + 2.5 = 3.618033989 t = 3.618033989 Simplifying t = 3.618033989

Subproblem 2

t + -2.5 = -1.118033989 Simplifying t + -2.5 = -1.118033989 Reorder the terms: -2.5 + t = -1.118033989 Solving -2.5 + t = -1.118033989 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + t = -1.118033989 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + t = -1.118033989 + 2.5 t = -1.118033989 + 2.5 Combine like terms: -1.118033989 + 2.5 = 1.381966011 t = 1.381966011 Simplifying t = 1.381966011

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.618033989, 1.381966011}

See similar equations:

| 6(2x+4)=96 | | 2x^3-20x^2+48x-25=0 | | 32=16+0.4*(20-10x) | | 24y-36x= | | 8x-2=2(4x-2) | | 2x^3-20x^2+48x-50=0 | | 3(y/8-2) | | 6(x+5)+6=60 | | -5-25h=70 | | 14=-3x-2(3x+11) | | x^2-66x+128=0 | | 2x-20.4=18.5 | | -3(9x-7)=2 | | 2(9+3x)=-42 | | -7=12+e | | 1/2(2x-4)-1/3(3x-9) | | -k+-8k+8k+-12k+8k=-20 | | -5-26h=70 | | 7/9÷9/10 | | a=5/6=4 | | 3x+6x=130 | | 2(9+3x)=-4 | | 2(2x-5)=9+3x | | -5/11h=5/9 | | X-57=14 | | Y(y-3)=8v-4 | | 6/13/r39 | | Y=80+.8Y+50+0+10 | | -m+4=15 | | 5h^2+2h-2=0 | | 4(1x-7)=-12 | | e^4x+3=15 |

Equations solver categories