-4.9t^2-4t+2.25=0

Simple and best practice solution for -4.9t^2-4t+2.25=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^2-4t+2.25=0 equation:


Simplifying
-4.9t2 + -4t + 2.25 = 0

Reorder the terms:
2.25 + -4t + -4.9t2 = 0

Solving
2.25 + -4t + -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'.
-0.4591836735 + 0.8163265306t + t2 = 0

Move the constant term to the right:

Add '0.4591836735' to each side of the equation.
-0.4591836735 + 0.8163265306t + 0.4591836735 + t2 = 0 + 0.4591836735

Reorder the terms:
-0.4591836735 + 0.4591836735 + 0.8163265306t + t2 = 0 + 0.4591836735

Combine like terms: -0.4591836735 + 0.4591836735 = 0.0000000000
0.0000000000 + 0.8163265306t + t2 = 0 + 0.4591836735
0.8163265306t + t2 = 0 + 0.4591836735

Combine like terms: 0 + 0.4591836735 = 0.4591836735
0.8163265306t + t2 = 0.4591836735

The t term is 0.8163265306t.  Take half its coefficient (0.4081632653).
Square it (0.1665972511) and add it to both sides.

Add '0.1665972511' to each side of the equation.
0.8163265306t + 0.1665972511 + t2 = 0.4591836735 + 0.1665972511

Reorder the terms:
0.1665972511 + 0.8163265306t + t2 = 0.4591836735 + 0.1665972511

Combine like terms: 0.4591836735 + 0.1665972511 = 0.6257809246
0.1665972511 + 0.8163265306t + t2 = 0.6257809246

Factor a perfect square on the left side:
(t + 0.4081632653)(t + 0.4081632653) = 0.6257809246

Calculate the square root of the right side: 0.791063161

Break this problem into two subproblems by setting 
(t + 0.4081632653) equal to 0.791063161 and -0.791063161.

Subproblem 1

t + 0.4081632653 = 0.791063161 Simplifying t + 0.4081632653 = 0.791063161 Reorder the terms: 0.4081632653 + t = 0.791063161 Solving 0.4081632653 + t = 0.791063161 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4081632653' to each side of the equation. 0.4081632653 + -0.4081632653 + t = 0.791063161 + -0.4081632653 Combine like terms: 0.4081632653 + -0.4081632653 = 0.0000000000 0.0000000000 + t = 0.791063161 + -0.4081632653 t = 0.791063161 + -0.4081632653 Combine like terms: 0.791063161 + -0.4081632653 = 0.3828998957 t = 0.3828998957 Simplifying t = 0.3828998957

Subproblem 2

t + 0.4081632653 = -0.791063161 Simplifying t + 0.4081632653 = -0.791063161 Reorder the terms: 0.4081632653 + t = -0.791063161 Solving 0.4081632653 + t = -0.791063161 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4081632653' to each side of the equation. 0.4081632653 + -0.4081632653 + t = -0.791063161 + -0.4081632653 Combine like terms: 0.4081632653 + -0.4081632653 = 0.0000000000 0.0000000000 + t = -0.791063161 + -0.4081632653 t = -0.791063161 + -0.4081632653 Combine like terms: -0.791063161 + -0.4081632653 = -1.1992264263 t = -1.1992264263 Simplifying t = -1.1992264263

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.3828998957, -1.1992264263}

See similar equations:

| 4(t-1)=14+t | | 0=-16t+112t-6 | | 4-24= | | 5x+131=2x+104 | | 3x^2-42x+18= | | -30-8x=6(x-5) | | 7x-x+3-3x-x= | | 7x+168=3x+136 | | 6x+24=4x | | 3x^2-42+18= | | -2(x+y)=7 | | 5c-9=4c+9 | | x(x-5x)=0 | | (3x+12)=27 | | 3-2(x-1)=11 | | 36-4x=-8(3+8x) | | 4u^2+63u+36=0 | | 5y+5-3y=8+y+6 | | 3(x-1)-2=4(x-2) | | 3xy+7y=12 | | 66(x-6)+4=-32+6x | | 7(3-4-4x)-2x=-9+2(1-15x) | | 5y-7=-6y | | 12(m+9)+4(1-2m)=-3m-9m | | -32z+63z^2-63= | | 15*0.0004= | | 5x(2x+.02)=67 | | -7m+44-8m+24=8m-6m+9-3m+3 | | 7x-5+9=4x+12 | | 0.1x+0.4=0.6 | | 1260*60x=110 | | 12=9[p+2]+57 |

Equations solver categories