4.9t^2+2t-45=0

Simple and best practice solution for 4.9t^2+2t-45=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+2t-45=0 equation:


Simplifying
4.9t2 + 2t + -45 = 0

Reorder the terms:
-45 + 2t + 4.9t2 = 0

Solving
-45 + 2t + 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'.
-9.183673469 + 0.4081632653t + t2 = 0

Move the constant term to the right:

Add '9.183673469' to each side of the equation.
-9.183673469 + 0.4081632653t + 9.183673469 + t2 = 0 + 9.183673469

Reorder the terms:
-9.183673469 + 9.183673469 + 0.4081632653t + t2 = 0 + 9.183673469

Combine like terms: -9.183673469 + 9.183673469 = 0.000000000
0.000000000 + 0.4081632653t + t2 = 0 + 9.183673469
0.4081632653t + t2 = 0 + 9.183673469

Combine like terms: 0 + 9.183673469 = 9.183673469
0.4081632653t + t2 = 9.183673469

The t term is 0.4081632653t.  Take half its coefficient (0.2040816327).
Square it (0.04164931281) and add it to both sides.

Add '0.04164931281' to each side of the equation.
0.4081632653t + 0.04164931281 + t2 = 9.183673469 + 0.04164931281

Reorder the terms:
0.04164931281 + 0.4081632653t + t2 = 9.183673469 + 0.04164931281

Combine like terms: 9.183673469 + 0.04164931281 = 9.22532278181
0.04164931281 + 0.4081632653t + t2 = 9.22532278181

Factor a perfect square on the left side:
(t + 0.2040816327)(t + 0.2040816327) = 9.22532278181

Calculate the square root of the right side: 3.037321646

Break this problem into two subproblems by setting 
(t + 0.2040816327) equal to 3.037321646 and -3.037321646.

Subproblem 1

t + 0.2040816327 = 3.037321646 Simplifying t + 0.2040816327 = 3.037321646 Reorder the terms: 0.2040816327 + t = 3.037321646 Solving 0.2040816327 + t = 3.037321646 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.2040816327' to each side of the equation. 0.2040816327 + -0.2040816327 + t = 3.037321646 + -0.2040816327 Combine like terms: 0.2040816327 + -0.2040816327 = 0.0000000000 0.0000000000 + t = 3.037321646 + -0.2040816327 t = 3.037321646 + -0.2040816327 Combine like terms: 3.037321646 + -0.2040816327 = 2.8332400133 t = 2.8332400133 Simplifying t = 2.8332400133

Subproblem 2

t + 0.2040816327 = -3.037321646 Simplifying t + 0.2040816327 = -3.037321646 Reorder the terms: 0.2040816327 + t = -3.037321646 Solving 0.2040816327 + t = -3.037321646 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.2040816327' to each side of the equation. 0.2040816327 + -0.2040816327 + t = -3.037321646 + -0.2040816327 Combine like terms: 0.2040816327 + -0.2040816327 = 0.0000000000 0.0000000000 + t = -3.037321646 + -0.2040816327 t = -3.037321646 + -0.2040816327 Combine like terms: -3.037321646 + -0.2040816327 = -3.2414032787 t = -3.2414032787 Simplifying t = -3.2414032787

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.8332400133, -3.2414032787}

See similar equations:

| 16t=1.3 | | 8-6x=-7 | | 2(d+12)=600 | | 150t+290=590 | | 1.2n=57.6 | | 2(r+12)=300 | | 100t+250=530 | | 5(2x+3)-3(x-3)=38 | | 6x+7x-10=0 | | 0.17-0.03(x+1)=-0.02(3-x) | | 16x-14=34 | | 9(3n+3)=6(2n+4)+6 | | -3(t-2)+6t=8t-4 | | 1*1=t | | d=1*1 | | 7x+8=9x-20 | | 4(2-3x)-7x=27 | | s-3=4 | | x^2-xy+y^2=57 | | 6X+13=3x+35 | | 24=6(7-c) | | a^2-0.05a+0.00006=1 | | a^2-0.05a+0.00006=0 | | 90+x+90+2x=180 | | Z=10-5+2z | | ln(4x)=2.4 | | 14x+16y=122 | | 14x+16y=112 | | y^2-4y-3y+12= | | 4x-5=5y | | 9x-171=2x-10 | | -4+9y=-22 |

Equations solver categories