t^2+8t+5=0

Simple and best practice solution for t^2+8t+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+8t+5=0 equation:


Simplifying
t2 + 8t + 5 = 0

Reorder the terms:
5 + 8t + t2 = 0

Solving
5 + 8t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 8t + -5 + t2 = 0 + -5

Reorder the terms:
5 + -5 + 8t + t2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 8t + t2 = 0 + -5
8t + t2 = 0 + -5

Combine like terms: 0 + -5 = -5
8t + t2 = -5

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 = -5 + 16

Reorder the terms:
16 + 8t + t2 = -5 + 16

Combine like terms: -5 + 16 = 11
16 + 8t + t2 = 11

Factor a perfect square on the left side:
(t + 4)(t + 4) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(t + 4) equal to 3.31662479 and -3.31662479.

Subproblem 1

t + 4 = 3.31662479 Simplifying t + 4 = 3.31662479 Reorder the terms: 4 + t = 3.31662479 Solving 4 + t = 3.31662479 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 = 3.31662479 + -4 Combine like terms: 4 + -4 = 0 0 + t = 3.31662479 + -4 t = 3.31662479 + -4 Combine like terms: 3.31662479 + -4 = -0.68337521 t = -0.68337521 Simplifying t = -0.68337521

Subproblem 2

t + 4 = -3.31662479 Simplifying t + 4 = -3.31662479 Reorder the terms: 4 + t = -3.31662479 Solving 4 + t = -3.31662479 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 = -3.31662479 + -4 Combine like terms: 4 + -4 = 0 0 + t = -3.31662479 + -4 t = -3.31662479 + -4 Combine like terms: -3.31662479 + -4 = -7.31662479 t = -7.31662479 Simplifying t = -7.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.68337521, -7.31662479}

See similar equations:

| y-u=at | | 8t-5=3t+1.45 | | t^2+8+5=0 | | 125a^6b^3c^8/25a^6b^2c^9 | | -15+y=-2 | | 4np+7mp= | | (a-7)(a-6)=0 | | (1,56X^(2/3))-(0.65X^(5/3)) | | (x+11)(x+5)=0 | | -4/15=6x/25 | | k+1-2=9-16 | | -1/2a-3/7=11/7-1/2a | | 7x/x^2-16= | | 4-8x=8-12x | | 2m-4(3m-2)=5(6+m)-7 | | 25x^2+90x+44=0 | | 2m-4(3m-2)=5(6+m)+7 | | 9x+35= | | 13x-17= | | 5x^2+24x-9=0 | | 19-1/2=34 | | 19-6/2=34 | | (2p-5q)(5q+2p)= | | 19-19/2=34 | | 19-7/2=34 | | 19-5=68 | | 7x+5=9x-11 | | -3x+9=8-(2x+17) | | 5x-(3-(x-1))=x+3(2x-4) | | 50x+22y=116 | | -9y=-9 | | Z-4/6-2=z/2 |

Equations solver categories