3t^2-3t-5=0

Simple and best practice solution for 3t^2-3t-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 3t^2-3t-5=0 equation:


Simplifying
3t2 + -3t + -5 = 0

Reorder the terms:
-5 + -3t + 3t2 = 0

Solving
-5 + -3t + 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'.
-1.666666667 + -1t + t2 = 0

Move the constant term to the right:

Add '1.666666667' to each side of the equation.
-1.666666667 + -1t + 1.666666667 + t2 = 0 + 1.666666667

Reorder the terms:
-1.666666667 + 1.666666667 + -1t + t2 = 0 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + -1t + t2 = 0 + 1.666666667
-1t + t2 = 0 + 1.666666667

Combine like terms: 0 + 1.666666667 = 1.666666667
-1t + t2 = 1.666666667

The t term is -1t.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1t + 0.25 + t2 = 1.666666667 + 0.25

Reorder the terms:
0.25 + -1t + t2 = 1.666666667 + 0.25

Combine like terms: 1.666666667 + 0.25 = 1.916666667
0.25 + -1t + t2 = 1.916666667

Factor a perfect square on the left side:
(t + -0.5)(t + -0.5) = 1.916666667

Calculate the square root of the right side: 1.384437311

Break this problem into two subproblems by setting 
(t + -0.5) equal to 1.384437311 and -1.384437311.

Subproblem 1

t + -0.5 = 1.384437311 Simplifying t + -0.5 = 1.384437311 Reorder the terms: -0.5 + t = 1.384437311 Solving -0.5 + t = 1.384437311 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + t = 1.384437311 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + t = 1.384437311 + 0.5 t = 1.384437311 + 0.5 Combine like terms: 1.384437311 + 0.5 = 1.884437311 t = 1.884437311 Simplifying t = 1.884437311

Subproblem 2

t + -0.5 = -1.384437311 Simplifying t + -0.5 = -1.384437311 Reorder the terms: -0.5 + t = -1.384437311 Solving -0.5 + t = -1.384437311 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + t = -1.384437311 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + t = -1.384437311 + 0.5 t = -1.384437311 + 0.5 Combine like terms: -1.384437311 + 0.5 = -0.884437311 t = -0.884437311 Simplifying t = -0.884437311

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.884437311, -0.884437311}

See similar equations:

| 16y+6x=165 | | 176=27-w | | 18.53+11.2-1.4d=-2.1d+16.5 | | 6=x-11 | | 7t^2-15+6=4 | | cosx-2sinx= | | 4x*12= | | U=4(6N+33)+5(N+1) | | 9x+8=9x-10 | | 7t-15+6=4 | | 14x^2-43x-21=0 | | 9x+34=10x+2y-2 | | 4x+7+3x=19a+x | | 9x+1=9x-8 | | 3x^3-10x^2+8=0 | | 3w^2+15w-42=0 | | 2ab=b+50 | | 3(x-2)=-2(x+18) | | 6x+7=6x-6 | | 14x^2+25x-25=0 | | 30x+4y=182 | | ((3x)(3x))+13x-10=0 | | 7(5x-2)=129 | | -(6w-4y-2)= | | (a^2)-3a-18=0 | | 2x+9=2x-8 | | -34=-2x | | 41=3v+17 | | 5x-(2x-6)=18 | | 4x*12=60 | | 3B=2A+5 | | 64=54+b |

Equations solver categories