8=12t-2.5t^2

Simple and best practice solution for 8=12t-2.5t^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 8=12t-2.5t^2 equation:


Simplifying
8 = 12t + -2.5t2

Solving
8 = 12t + -2.5t2

Solving for variable 't'.

Reorder the terms:
8 + -12t + 2.5t2 = 12t + -12t + -2.5t2 + 2.5t2

Combine like terms: 12t + -12t = 0
8 + -12t + 2.5t2 = 0 + -2.5t2 + 2.5t2
8 + -12t + 2.5t2 = -2.5t2 + 2.5t2

Combine like terms: -2.5t2 + 2.5t2 = 0.0
8 + -12t + 2.5t2 = 0.0

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

Divide each side by '2.5'.
3.2 + -4.8t + t2 = 0

Move the constant term to the right:

Add '-3.2' to each side of the equation.
3.2 + -4.8t + -3.2 + t2 = 0 + -3.2

Reorder the terms:
3.2 + -3.2 + -4.8t + t2 = 0 + -3.2

Combine like terms: 3.2 + -3.2 = 0.0
0.0 + -4.8t + t2 = 0 + -3.2
-4.8t + t2 = 0 + -3.2

Combine like terms: 0 + -3.2 = -3.2
-4.8t + t2 = -3.2

The t term is -4.8t.  Take half its coefficient (-2.4).
Square it (5.76) and add it to both sides.

Add '5.76' to each side of the equation.
-4.8t + 5.76 + t2 = -3.2 + 5.76

Reorder the terms:
5.76 + -4.8t + t2 = -3.2 + 5.76

Combine like terms: -3.2 + 5.76 = 2.56
5.76 + -4.8t + t2 = 2.56

Factor a perfect square on the left side:
(t + -2.4)(t + -2.4) = 2.56

Calculate the square root of the right side: 1.6

Break this problem into two subproblems by setting 
(t + -2.4) equal to 1.6 and -1.6.

Subproblem 1

t + -2.4 = 1.6 Simplifying t + -2.4 = 1.6 Reorder the terms: -2.4 + t = 1.6 Solving -2.4 + t = 1.6 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + t = 1.6 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + t = 1.6 + 2.4 t = 1.6 + 2.4 Combine like terms: 1.6 + 2.4 = 4 t = 4 Simplifying t = 4

Subproblem 2

t + -2.4 = -1.6 Simplifying t + -2.4 = -1.6 Reorder the terms: -2.4 + t = -1.6 Solving -2.4 + t = -1.6 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + t = -1.6 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + t = -1.6 + 2.4 t = -1.6 + 2.4 Combine like terms: -1.6 + 2.4 = 0.8 t = 0.8 Simplifying t = 0.8

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4, 0.8}

See similar equations:

| 9x^4+17x^2-2=0 | | 15x^2+20+37x=0 | | x^3+9x^2+3x-7=0 | | 5w-4w+1=-8+2 | | x^3+8x^2+3x-7=0 | | 4x+2y=350 | | -13+x=x+26 | | 5-(x+5)=-2(x-4) | | 24=12x | | (3x+2)-(5x-2)= | | 5-6x=y | | 9h(6h+6)= | | 2(7n+9)= | | 2x+69=0 | | 2(x-3)=(4x+3x+5) | | 72=2(36-36)+2(36) | | 4x^2-34x-60=0 | | 72=2(w-36)+2w | | y=2.5x^2+5995 | | 2x-3[3(x+7)-(x-9)]-2= | | x=27+4x | | 5e(5e+7)+e(6e+7)= | | 16+x-11=8-5 | | 8[5-(8-4y)]= | | 0x+1y+-8=9 | | 6(2x-4)+12x=14 | | (9x-8)-(7x+9)-(4x-9)= | | -(7x^2-9x+9)= | | 5x+8y=227 | | 1x+0y+-13=15 | | (5x-1)(3x-1)=63 | | -4.9x^2+14.7x+20=0 |

Equations solver categories