30=8.13t+5t^2

Simple and best practice solution for 30=8.13t+5t^2 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 30=8.13t+5t^2 equation:


Simplifying
30 = 8.13t + 5t2

Solving
30 = 8.13t + 5t2

Solving for variable 't'.

Reorder the terms:
30 + -8.13t + -5t2 = 8.13t + -8.13t + 5t2 + -5t2

Combine like terms: 8.13t + -8.13t = 0.00
30 + -8.13t + -5t2 = 0.00 + 5t2 + -5t2
30 + -8.13t + -5t2 = 5t2 + -5t2

Combine like terms: 5t2 + -5t2 = 0
30 + -8.13t + -5t2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-6 + 1.626t + t2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 1.626t + 6 + t2 = 0 + 6

Reorder the terms:
-6 + 6 + 1.626t + t2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 1.626t + t2 = 0 + 6
1.626t + t2 = 0 + 6

Combine like terms: 0 + 6 = 6
1.626t + t2 = 6

The t term is 1.626t.  Take half its coefficient (0.813).
Square it (0.660969) and add it to both sides.

Add '0.660969' to each side of the equation.
1.626t + 0.660969 + t2 = 6 + 0.660969

Reorder the terms:
0.660969 + 1.626t + t2 = 6 + 0.660969

Combine like terms: 6 + 0.660969 = 6.660969
0.660969 + 1.626t + t2 = 6.660969

Factor a perfect square on the left side:
(t + 0.813)(t + 0.813) = 6.660969

Calculate the square root of the right side: 2.580885313

Break this problem into two subproblems by setting 
(t + 0.813) equal to 2.580885313 and -2.580885313.

Subproblem 1

t + 0.813 = 2.580885313 Simplifying t + 0.813 = 2.580885313 Reorder the terms: 0.813 + t = 2.580885313 Solving 0.813 + t = 2.580885313 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.813' to each side of the equation. 0.813 + -0.813 + t = 2.580885313 + -0.813 Combine like terms: 0.813 + -0.813 = 0.000 0.000 + t = 2.580885313 + -0.813 t = 2.580885313 + -0.813 Combine like terms: 2.580885313 + -0.813 = 1.767885313 t = 1.767885313 Simplifying t = 1.767885313

Subproblem 2

t + 0.813 = -2.580885313 Simplifying t + 0.813 = -2.580885313 Reorder the terms: 0.813 + t = -2.580885313 Solving 0.813 + t = -2.580885313 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.813' to each side of the equation. 0.813 + -0.813 + t = -2.580885313 + -0.813 Combine like terms: 0.813 + -0.813 = 0.000 0.000 + t = -2.580885313 + -0.813 t = -2.580885313 + -0.813 Combine like terms: -2.580885313 + -0.813 = -3.393885313 t = -3.393885313 Simplifying t = -3.393885313

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.767885313, -3.393885313}

See similar equations:

| 3(-8-8x)=2(x-2) | | -5+2=y | | .75b+9=17 | | -3(3y-5)+2(2y+10)= | | -5y+2=x | | 2(-5-6k)=32 | | 8x+6=7(x+5)+7 | | 34.77=26.98 | | r^2*2r= | | -11x+4y=15 | | 56c+14= | | -6.1u-1.5=-4.6u+1.5 | | 2(3.14)r(2r)= | | 0.83x-0.58=-0.75x-2.16 | | 7x+11=5x+12-(7x-2) | | (2x+60)(3x+70)= | | 2(3.14)r^2+2(3.14)r(2r)= | | 6x-6=16x+64 | | ln(y)=.69 | | 11+5a=1+3a | | 9y+8=-3(-3y-4) | | 5u-7=2(u+7) | | -15+n+7-1=-5+3n | | -8x+5=-6x-5 | | 4a+4=4-a | | 4x-5x+9= | | .5m-3=1 | | n+4=-11-2n | | -8x+5x=-12-5x | | 5x+7x=192 | | 0.2(x-5)=4 | | 13.4-0.5x=10.1 |

Equations solver categories