t=-16t^2+128t+20

Simple and best practice solution for t=-16t^2+128t+20 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=-16t^2+128t+20 equation:


Simplifying
t = -16t2 + 128t + 20

Reorder the terms:
t = 20 + 128t + -16t2

Solving
t = 20 + 128t + -16t2

Solving for variable 't'.

Reorder the terms:
-20 + t + -128t + 16t2 = 20 + 128t + -16t2 + -20 + -128t + 16t2

Combine like terms: t + -128t = -127t
-20 + -127t + 16t2 = 20 + 128t + -16t2 + -20 + -128t + 16t2

Reorder the terms:
-20 + -127t + 16t2 = 20 + -20 + 128t + -128t + -16t2 + 16t2

Combine like terms: 20 + -20 = 0
-20 + -127t + 16t2 = 0 + 128t + -128t + -16t2 + 16t2
-20 + -127t + 16t2 = 128t + -128t + -16t2 + 16t2

Combine like terms: 128t + -128t = 0
-20 + -127t + 16t2 = 0 + -16t2 + 16t2
-20 + -127t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
-20 + -127t + 16t2 = 0

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

Divide each side by '16'.
-1.25 + -7.9375t + t2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + -7.9375t + 1.25 + t2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + -7.9375t + t2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + -7.9375t + t2 = 0 + 1.25
-7.9375t + t2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
-7.9375t + t2 = 1.25

The t term is -7.9375t.  Take half its coefficient (-3.96875).
Square it (15.75097656) and add it to both sides.

Add '15.75097656' to each side of the equation.
-7.9375t + 15.75097656 + t2 = 1.25 + 15.75097656

Reorder the terms:
15.75097656 + -7.9375t + t2 = 1.25 + 15.75097656

Combine like terms: 1.25 + 15.75097656 = 17.00097656
15.75097656 + -7.9375t + t2 = 17.00097656

Factor a perfect square on the left side:
(t + -3.96875)(t + -3.96875) = 17.00097656

Calculate the square root of the right side: 4.123224049

Break this problem into two subproblems by setting 
(t + -3.96875) equal to 4.123224049 and -4.123224049.

Subproblem 1

t + -3.96875 = 4.123224049 Simplifying t + -3.96875 = 4.123224049 Reorder the terms: -3.96875 + t = 4.123224049 Solving -3.96875 + t = 4.123224049 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.96875' to each side of the equation. -3.96875 + 3.96875 + t = 4.123224049 + 3.96875 Combine like terms: -3.96875 + 3.96875 = 0.00000 0.00000 + t = 4.123224049 + 3.96875 t = 4.123224049 + 3.96875 Combine like terms: 4.123224049 + 3.96875 = 8.091974049 t = 8.091974049 Simplifying t = 8.091974049

Subproblem 2

t + -3.96875 = -4.123224049 Simplifying t + -3.96875 = -4.123224049 Reorder the terms: -3.96875 + t = -4.123224049 Solving -3.96875 + t = -4.123224049 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.96875' to each side of the equation. -3.96875 + 3.96875 + t = -4.123224049 + 3.96875 Combine like terms: -3.96875 + 3.96875 = 0.00000 0.00000 + t = -4.123224049 + 3.96875 t = -4.123224049 + 3.96875 Combine like terms: -4.123224049 + 3.96875 = -0.154474049 t = -0.154474049 Simplifying t = -0.154474049

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.091974049, -0.154474049}

See similar equations:

| X+29=62 | | 6-c=15 | | x+x+25=300-3x | | 7(x+13)=56 | | 5+4z=-(2z-4) | | 3x-40+4x=40-x | | -3(2x+5)=15 | | 75=500(.05) | | 20+5x=56-x | | .66x=14 | | 2x^2-64-18=0 | | 28/49=n | | -2(-6x+3)-10=9-5x | | x^2-55=45 | | 11-x=37 | | 2(2t-6)=6(t+2) | | x-3/5=x+6/2 | | 4(x+1)=2x+4 | | 30x=5d-8d | | 104=13+13+n+n | | 10x^2-2=82 | | 12x+17=180 | | 10m-2/5=93/5 | | l^2+3=12 | | x^2-27x-80=0 | | 9x+6=18+3x | | 2x+35=-4(2x-5) | | 4=3a-29 | | -8+12-12-3= | | 6n+3=4n+9 | | m+4/3=7 | | 25/100=t/5 |

Equations solver categories