0=43-4t-5t^2

Simple and best practice solution for 0=43-4t-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 0=43-4t-5t^2 equation:


Simplifying
0 = 43 + -4t + -5t2

Solving
0 = 43 + -4t + -5t2

Solving for variable 't'.

Combine like terms: 0 + -43 = -43
-43 + 4t + 5t2 = 43 + -4t + -5t2 + -43 + 4t + 5t2

Reorder the terms:
-43 + 4t + 5t2 = 43 + -43 + -4t + 4t + -5t2 + 5t2

Combine like terms: 43 + -43 = 0
-43 + 4t + 5t2 = 0 + -4t + 4t + -5t2 + 5t2
-43 + 4t + 5t2 = -4t + 4t + -5t2 + 5t2

Combine like terms: -4t + 4t = 0
-43 + 4t + 5t2 = 0 + -5t2 + 5t2
-43 + 4t + 5t2 = -5t2 + 5t2

Combine like terms: -5t2 + 5t2 = 0
-43 + 4t + 5t2 = 0

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

Divide each side by '5'.
-8.6 + 0.8t + t2 = 0

Move the constant term to the right:

Add '8.6' to each side of the equation.
-8.6 + 0.8t + 8.6 + t2 = 0 + 8.6

Reorder the terms:
-8.6 + 8.6 + 0.8t + t2 = 0 + 8.6

Combine like terms: -8.6 + 8.6 = 0.0
0.0 + 0.8t + t2 = 0 + 8.6
0.8t + t2 = 0 + 8.6

Combine like terms: 0 + 8.6 = 8.6
0.8t + t2 = 8.6

The t term is 0.8t.  Take half its coefficient (0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
0.8t + 0.16 + t2 = 8.6 + 0.16

Reorder the terms:
0.16 + 0.8t + t2 = 8.6 + 0.16

Combine like terms: 8.6 + 0.16 = 8.76
0.16 + 0.8t + t2 = 8.76

Factor a perfect square on the left side:
(t + 0.4)(t + 0.4) = 8.76

Calculate the square root of the right side: 2.959729717

Break this problem into two subproblems by setting 
(t + 0.4) equal to 2.959729717 and -2.959729717.

Subproblem 1

t + 0.4 = 2.959729717 Simplifying t + 0.4 = 2.959729717 Reorder the terms: 0.4 + t = 2.959729717 Solving 0.4 + t = 2.959729717 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + t = 2.959729717 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + t = 2.959729717 + -0.4 t = 2.959729717 + -0.4 Combine like terms: 2.959729717 + -0.4 = 2.559729717 t = 2.559729717 Simplifying t = 2.559729717

Subproblem 2

t + 0.4 = -2.959729717 Simplifying t + 0.4 = -2.959729717 Reorder the terms: 0.4 + t = -2.959729717 Solving 0.4 + t = -2.959729717 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + t = -2.959729717 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + t = -2.959729717 + -0.4 t = -2.959729717 + -0.4 Combine like terms: -2.959729717 + -0.4 = -3.359729717 t = -3.359729717 Simplifying t = -3.359729717

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.559729717, -3.359729717}

See similar equations:

| 4y^2-19y+15= | | -15a+30=-89 | | 4-4(2)(-12)=0 | | -14x-5=93 | | 10.2x+27.27=-9.8x+25.99 | | -2(4.36-6.92x)=13.83x-2.55 | | y=-6x-21 | | -(x-1)=2(x-1) | | -9(t-8)-(t+8)=10 | | -4(t-4)+8t=9t-7 | | 4(32-2t)=144 | | -4t(t-4)+8t=9t-7 | | 10m=9 | | 15x-3=48 | | (5b-8)-2(2b+1)=-7 | | (3n+8)=-48 | | 9.31x+27.94=-10.9x+27.40 | | -4(t-3)-(t+4)=9 | | 15x^2-26x-21=0 | | -3(5s-4)-12=-3(9s+4)-5 | | 12(3w-5)=18(2w+7) | | 3x+2(x-3)-7(y-4)=0 | | (2x+y)-((x+y)+3)=0 | | 7-2-1= | | 7-2-2= | | 8(3x-3)=4(6x+4) | | 18-32=4(18-7) | | -1-4=-3 | | (x-1)(2a+10b)=0 | | -(6y+5)-(5y-6)=7 | | (x-7)(x-7)=0 | | 8x+4+4x+9=11x+3 |

Equations solver categories