-16t^2+69t+5=0

Simple and best practice solution for -16t^2+69t+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 -16t^2+69t+5=0 equation:


Simplifying
-16t2 + 69t + 5 = 0

Reorder the terms:
5 + 69t + -16t2 = 0

Solving
5 + 69t + -16t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-0.3125 + -4.3125t + t2 = 0

Move the constant term to the right:

Add '0.3125' to each side of the equation.
-0.3125 + -4.3125t + 0.3125 + t2 = 0 + 0.3125

Reorder the terms:
-0.3125 + 0.3125 + -4.3125t + t2 = 0 + 0.3125

Combine like terms: -0.3125 + 0.3125 = 0.0000
0.0000 + -4.3125t + t2 = 0 + 0.3125
-4.3125t + t2 = 0 + 0.3125

Combine like terms: 0 + 0.3125 = 0.3125
-4.3125t + t2 = 0.3125

The t term is -4.3125t.  Take half its coefficient (-2.15625).
Square it (4.649414063) and add it to both sides.

Add '4.649414063' to each side of the equation.
-4.3125t + 4.649414063 + t2 = 0.3125 + 4.649414063

Reorder the terms:
4.649414063 + -4.3125t + t2 = 0.3125 + 4.649414063

Combine like terms: 0.3125 + 4.649414063 = 4.961914063
4.649414063 + -4.3125t + t2 = 4.961914063

Factor a perfect square on the left side:
(t + -2.15625)(t + -2.15625) = 4.961914063

Calculate the square root of the right side: 2.227535424

Break this problem into two subproblems by setting 
(t + -2.15625) equal to 2.227535424 and -2.227535424.

Subproblem 1

t + -2.15625 = 2.227535424 Simplifying t + -2.15625 = 2.227535424 Reorder the terms: -2.15625 + t = 2.227535424 Solving -2.15625 + t = 2.227535424 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.15625' to each side of the equation. -2.15625 + 2.15625 + t = 2.227535424 + 2.15625 Combine like terms: -2.15625 + 2.15625 = 0.00000 0.00000 + t = 2.227535424 + 2.15625 t = 2.227535424 + 2.15625 Combine like terms: 2.227535424 + 2.15625 = 4.383785424 t = 4.383785424 Simplifying t = 4.383785424

Subproblem 2

t + -2.15625 = -2.227535424 Simplifying t + -2.15625 = -2.227535424 Reorder the terms: -2.15625 + t = -2.227535424 Solving -2.15625 + t = -2.227535424 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.15625' to each side of the equation. -2.15625 + 2.15625 + t = -2.227535424 + 2.15625 Combine like terms: -2.15625 + 2.15625 = 0.00000 0.00000 + t = -2.227535424 + 2.15625 t = -2.227535424 + 2.15625 Combine like terms: -2.227535424 + 2.15625 = -0.071285424 t = -0.071285424 Simplifying t = -0.071285424

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.383785424, -0.071285424}

See similar equations:

| 4x-7(x+8)=x | | l(w+2)=48 | | (6x+13)(x+12)=0 | | 8r^2+29r=12 | | 324=2(60+17h) | | 8x^3+16x^2-24x^5+40x^4= | | 2x^2*12x-110=0 | | (x+2)*(6x-3)=0 | | 178-4y=32y+18 | | 13-7y=53-14y | | -112-9y=10y+21 | | 184-5y=6y+9 | | 4+4x=2x+8 | | 184-5y=10-7y | | -8-5y=10-7y | | 106-5y=10-7y | | 2(6c+5)= | | 2x-10=x(x-5) | | (12u-5)-5(4w+5)=50 | | 15A+1B=2A+2B | | -4g^2+6=-10g | | 3+8y=87+y | | 6x-8x=-16 | | 3A+4B=0 | | 5y-2=12y-65 | | 6y+34=13y-50 | | 24-y=12 | | 12y-23=8y+5 | | 7m^2-2m=10 | | 2x^4+5x^3-21x^2+5x+2=0 | | 20=2x+9 | | 3x^2-48x+144=0 |

Equations solver categories