-4.9t^2+5.5t+120=0

Simple and best practice solution for -4.9t^2+5.5t+120=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 -4.9t^2+5.5t+120=0 equation:


Simplifying
-4.9t2 + 5.5t + 120 = 0

Reorder the terms:
120 + 5.5t + -4.9t2 = 0

Solving
120 + 5.5t + -4.9t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
-24.48979592 + -1.12244898t + t2 = 0

Move the constant term to the right:

Add '24.48979592' to each side of the equation.
-24.48979592 + -1.12244898t + 24.48979592 + t2 = 0 + 24.48979592

Reorder the terms:
-24.48979592 + 24.48979592 + -1.12244898t + t2 = 0 + 24.48979592

Combine like terms: -24.48979592 + 24.48979592 = 0.00000000
0.00000000 + -1.12244898t + t2 = 0 + 24.48979592
-1.12244898t + t2 = 0 + 24.48979592

Combine like terms: 0 + 24.48979592 = 24.48979592
-1.12244898t + t2 = 24.48979592

The t term is -1.12244898t.  Take half its coefficient (-0.56122449).
Square it (0.3149729282) and add it to both sides.

Add '0.3149729282' to each side of the equation.
-1.12244898t + 0.3149729282 + t2 = 24.48979592 + 0.3149729282

Reorder the terms:
0.3149729282 + -1.12244898t + t2 = 24.48979592 + 0.3149729282

Combine like terms: 24.48979592 + 0.3149729282 = 24.8047688482
0.3149729282 + -1.12244898t + t2 = 24.8047688482

Factor a perfect square on the left side:
(t + -0.56122449)(t + -0.56122449) = 24.8047688482

Calculate the square root of the right side: 4.98043862

Break this problem into two subproblems by setting 
(t + -0.56122449) equal to 4.98043862 and -4.98043862.

Subproblem 1

t + -0.56122449 = 4.98043862 Simplifying t + -0.56122449 = 4.98043862 Reorder the terms: -0.56122449 + t = 4.98043862 Solving -0.56122449 + t = 4.98043862 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.56122449' to each side of the equation. -0.56122449 + 0.56122449 + t = 4.98043862 + 0.56122449 Combine like terms: -0.56122449 + 0.56122449 = 0.00000000 0.00000000 + t = 4.98043862 + 0.56122449 t = 4.98043862 + 0.56122449 Combine like terms: 4.98043862 + 0.56122449 = 5.54166311 t = 5.54166311 Simplifying t = 5.54166311

Subproblem 2

t + -0.56122449 = -4.98043862 Simplifying t + -0.56122449 = -4.98043862 Reorder the terms: -0.56122449 + t = -4.98043862 Solving -0.56122449 + t = -4.98043862 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.56122449' to each side of the equation. -0.56122449 + 0.56122449 + t = -4.98043862 + 0.56122449 Combine like terms: -0.56122449 + 0.56122449 = 0.00000000 0.00000000 + t = -4.98043862 + 0.56122449 t = -4.98043862 + 0.56122449 Combine like terms: -4.98043862 + 0.56122449 = -4.41921413 t = -4.41921413 Simplifying t = -4.41921413

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.54166311, -4.41921413}

See similar equations:

| x^2+6x-130=0 | | 19+4x-5+4x+18= | | k^4-5k^2+4=0 | | 6x-2=-4+8x | | 2y=0+4 | | 2(0)=x+4 | | 7z+3=9z-3z | | 3x^2+6x=-10 | | 145.6+84.56-37.384= | | 3(0)-6y=6 | | x^2-6x-130=0 | | x^2-5x-130=0 | | 7x-2(-14)=14 | | 7x-2(0)=14 | | 7(0)-2Y=14 | | -2.3n+12=21 | | 11=[3x+5] | | 4y+5=y+26 | | 6(2-x)=9-2x+4+3x | | -7(p+7)+3(p-4)=-17 | | -4x+14=0 | | -5b+4=18 | | -4(x-y+8)= | | -14+n=-6 | | 5x-5=4x+23 | | -3a-7=2.3 | | 6x+6+13x+3=180 | | 1=X-.515 | | -(-2t)= | | .02X=.04 | | X-16=.08 | | 8v^6-18v-30=0 |

Equations solver categories