4t^2-3t-12=0

Simple and best practice solution for 4t^2-3t-12=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 4t^2-3t-12=0 equation:


Simplifying
4t2 + -3t + -12 = 0

Reorder the terms:
-12 + -3t + 4t2 = 0

Solving
-12 + -3t + 4t2 = 0

Solving for variable 't'.

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

Divide each side by '4'.
-3 + -0.75t + t2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -0.75t + 3 + t2 = 0 + 3

Reorder the terms:
-3 + 3 + -0.75t + t2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -0.75t + t2 = 0 + 3
-0.75t + t2 = 0 + 3

Combine like terms: 0 + 3 = 3
-0.75t + t2 = 3

The t term is -0.75t.  Take half its coefficient (-0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
-0.75t + 0.140625 + t2 = 3 + 0.140625

Reorder the terms:
0.140625 + -0.75t + t2 = 3 + 0.140625

Combine like terms: 3 + 0.140625 = 3.140625
0.140625 + -0.75t + t2 = 3.140625

Factor a perfect square on the left side:
(t + -0.375)(t + -0.375) = 3.140625

Calculate the square root of the right side: 1.77218086

Break this problem into two subproblems by setting 
(t + -0.375) equal to 1.77218086 and -1.77218086.

Subproblem 1

t + -0.375 = 1.77218086 Simplifying t + -0.375 = 1.77218086 Reorder the terms: -0.375 + t = 1.77218086 Solving -0.375 + t = 1.77218086 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + t = 1.77218086 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + t = 1.77218086 + 0.375 t = 1.77218086 + 0.375 Combine like terms: 1.77218086 + 0.375 = 2.14718086 t = 2.14718086 Simplifying t = 2.14718086

Subproblem 2

t + -0.375 = -1.77218086 Simplifying t + -0.375 = -1.77218086 Reorder the terms: -0.375 + t = -1.77218086 Solving -0.375 + t = -1.77218086 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + t = -1.77218086 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + t = -1.77218086 + 0.375 t = -1.77218086 + 0.375 Combine like terms: -1.77218086 + 0.375 = -1.39718086 t = -1.39718086 Simplifying t = -1.39718086

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.14718086, -1.39718086}

See similar equations:

| 2c-14c=0 | | -2x=-4x+8 | | (2/7x-2)(1/3x-1/30)=0 | | 51y=2(25y+79) | | 8x+4=32-2x | | 9x-2=37 | | 2x-10+8x=10 | | 5(2x-l)-2(3x)=1 | | 18=8t-17t | | (x+4)+5=(x+9) | | r=h-y | | 18=8t-18t | | 5p+27=3(4-p) | | (1/64)^3v=16 | | x^2+y^2=20y-99 | | 18=8t-7t | | Y^2-3y-4x=0 | | 18x=30z | | 2x+49=79 | | 3x+33=13x-40 | | 8x-16+2x+6=30 | | 81s^2+72+16=0 | | -5a=5a-4 | | 2x-4+x=30 | | 2t-3=13 | | 6x+17+8x=12x+3+4x+12 | | -2g^2+52g-82=0 | | h^2+14h=-25 | | -2q^2-58q-70=0 | | 2a+3=79 | | -2t^2+48t=-22 | | 1/3x-16=2 |

Equations solver categories