3t^2-8t-36=0

Simple and best practice solution for 3t^2-8t-36=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 3t^2-8t-36=0 equation:


Simplifying
3t2 + -8t + -36 = 0

Reorder the terms:
-36 + -8t + 3t2 = 0

Solving
-36 + -8t + 3t2 = 0

Solving for variable 't'.

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

Divide each side by '3'.
-12 + -2.666666667t + t2 = 0

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -2.666666667t + 12 + t2 = 0 + 12

Reorder the terms:
-12 + 12 + -2.666666667t + t2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -2.666666667t + t2 = 0 + 12
-2.666666667t + t2 = 0 + 12

Combine like terms: 0 + 12 = 12
-2.666666667t + t2 = 12

The t term is -2.666666667t.  Take half its coefficient (-1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
-2.666666667t + 1.777777780 + t2 = 12 + 1.777777780

Reorder the terms:
1.777777780 + -2.666666667t + t2 = 12 + 1.777777780

Combine like terms: 12 + 1.777777780 = 13.77777778
1.777777780 + -2.666666667t + t2 = 13.77777778

Factor a perfect square on the left side:
(t + -1.333333334)(t + -1.333333334) = 13.77777778

Calculate the square root of the right side: 3.711842909

Break this problem into two subproblems by setting 
(t + -1.333333334) equal to 3.711842909 and -3.711842909.

Subproblem 1

t + -1.333333334 = 3.711842909 Simplifying t + -1.333333334 = 3.711842909 Reorder the terms: -1.333333334 + t = 3.711842909 Solving -1.333333334 + t = 3.711842909 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + t = 3.711842909 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + t = 3.711842909 + 1.333333334 t = 3.711842909 + 1.333333334 Combine like terms: 3.711842909 + 1.333333334 = 5.045176243 t = 5.045176243 Simplifying t = 5.045176243

Subproblem 2

t + -1.333333334 = -3.711842909 Simplifying t + -1.333333334 = -3.711842909 Reorder the terms: -1.333333334 + t = -3.711842909 Solving -1.333333334 + t = -3.711842909 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.333333334' to each side of the equation. -1.333333334 + 1.333333334 + t = -3.711842909 + 1.333333334 Combine like terms: -1.333333334 + 1.333333334 = 0.000000000 0.000000000 + t = -3.711842909 + 1.333333334 t = -3.711842909 + 1.333333334 Combine like terms: -3.711842909 + 1.333333334 = -2.378509575 t = -2.378509575 Simplifying t = -2.378509575

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.045176243, -2.378509575}

See similar equations:

| 40+0.45(m)= | | 3[4-(-8x-7)]=216x+201 | | 6^2-98/7x9-2 | | 2X+6-4(X+1)=6X+5 | | 5x-2/3=9 | | 3/4a-14=-8 | | x-23=-15 | | 10000=1388x+24963 | | 8w-28=-4(w-5) | | 4u-9+2(2u+2)=-7(u+2) | | 16=1-2r-r | | 7(3x-5)-14(x-1)=0 | | 22=-3(23-z)+2(z-2) | | 3y+2x=27 | | t^7+36t^5=0 | | 2(5z+3)-8=88 | | g+2(2+g)=g+16 | | 12=1/2(18-g) | | 2x+21=3(x+5) | | 100=49.99+0.15m | | -3(5+4)+15=-12 | | 22=-3(23-2)+2(2-2) | | 1/6d-2=3 | | 14x+10-8x=20-6x+3 | | 6(8-4q-6q)+4(q+9)=12 | | 20-[4+8y-4(y+3)]=-5(3y-3)-[8(y-1)-14y+5] | | 2times+23=49 | | https://instagram.com/p/54pfaPgecy/ | | 5(2x-3)=3(3x-5) | | (4x-8)/3 | | 2y^2(y^2-2)=18+y^2 | | 3/4x-8=7 |

Equations solver categories