0=t^2-8t-.25

Simple and best practice solution for 0=t^2-8t-.25 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 0=t^2-8t-.25 equation:


Simplifying
0 = t2 + -8t + -0.25

Reorder the terms:
0 = -0.25 + -8t + t2

Solving
0 = -0.25 + -8t + t2

Solving for variable 't'.

Combine like terms: 0 + 0.25 = 0.25
0.25 + 8t + -1t2 = -0.25 + -8t + t2 + 0.25 + 8t + -1t2

Reorder the terms:
0.25 + 8t + -1t2 = -0.25 + 0.25 + -8t + 8t + t2 + -1t2

Combine like terms: -0.25 + 0.25 = 0.00
0.25 + 8t + -1t2 = 0.00 + -8t + 8t + t2 + -1t2
0.25 + 8t + -1t2 = -8t + 8t + t2 + -1t2

Combine like terms: -8t + 8t = 0
0.25 + 8t + -1t2 = 0 + t2 + -1t2
0.25 + 8t + -1t2 = t2 + -1t2

Combine like terms: t2 + -1t2 = 0
0.25 + 8t + -1t2 = 0

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

Divide each side by '-1'.
-0.25 + -8t + t2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + -8t + 0.25 + t2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + -8t + t2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + -8t + t2 = 0 + 0.25
-8t + t2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
-8t + t2 = 0.25

The t term is -8t.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8t + 16 + t2 = 0.25 + 16

Reorder the terms:
16 + -8t + t2 = 0.25 + 16

Combine like terms: 0.25 + 16 = 16.25
16 + -8t + t2 = 16.25

Factor a perfect square on the left side:
(t + -4)(t + -4) = 16.25

Calculate the square root of the right side: 4.031128874

Break this problem into two subproblems by setting 
(t + -4) equal to 4.031128874 and -4.031128874.

Subproblem 1

t + -4 = 4.031128874 Simplifying t + -4 = 4.031128874 Reorder the terms: -4 + t = 4.031128874 Solving -4 + t = 4.031128874 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + t = 4.031128874 + 4 Combine like terms: -4 + 4 = 0 0 + t = 4.031128874 + 4 t = 4.031128874 + 4 Combine like terms: 4.031128874 + 4 = 8.031128874 t = 8.031128874 Simplifying t = 8.031128874

Subproblem 2

t + -4 = -4.031128874 Simplifying t + -4 = -4.031128874 Reorder the terms: -4 + t = -4.031128874 Solving -4 + t = -4.031128874 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + t = -4.031128874 + 4 Combine like terms: -4 + 4 = 0 0 + t = -4.031128874 + 4 t = -4.031128874 + 4 Combine like terms: -4.031128874 + 4 = -0.031128874 t = -0.031128874 Simplifying t = -0.031128874

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.031128874, -0.031128874}

See similar equations:

| 11+8=6a+1 | | s+9(-10)=14 | | (90-x)-15=(90-x)-15 | | 50(500-y)+75y=4000 | | 9x+9.62=6x+14 | | X+370+4300=y | | h=-16t^2+155t+23 | | 50x+y=4000 | | 5y=5y-42 | | 8600+740+2x=0 | | 40x+60y=4000 | | 40x+70y=4000 | | 50x+70y=4000 | | 1+51nx= | | x^2-6x+18=3x | | 8(s+3)=64 | | 2r-8=15 | | 12r-8=15 | | 25b/2a/5b^5/4ab | | y^2+(2p-8)y=2q+9 | | 50x+75y=2700 | | -8-3m=-4-m | | (6-w)(5w+2)=0 | | (4v+6)(8+v)=0 | | 6/5x-3/2=7/10 | | http://6/5x-3/2=7/10 | | w(2w+5)-63=0 | | 14x^5-8x^4/2x^2 | | 6x-14x=-35+11 | | 2x-y-8=0 | | 4/7=2516/x | | 29-3x=14-8x |

Equations solver categories