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

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


Simplifying
-4.9t2 + 2t + 4 = 0

Reorder the terms:
4 + 2t + -4.9t2 = 0

Solving
4 + 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'.
-0.8163265306 + -0.4081632653t + t2 = 0

Move the constant term to the right:

Add '0.8163265306' to each side of the equation.
-0.8163265306 + -0.4081632653t + 0.8163265306 + t2 = 0 + 0.8163265306

Reorder the terms:
-0.8163265306 + 0.8163265306 + -0.4081632653t + t2 = 0 + 0.8163265306

Combine like terms: -0.8163265306 + 0.8163265306 = 0.0000000000
0.0000000000 + -0.4081632653t + t2 = 0 + 0.8163265306
-0.4081632653t + t2 = 0 + 0.8163265306

Combine like terms: 0 + 0.8163265306 = 0.8163265306
-0.4081632653t + t2 = 0.8163265306

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 = 0.8163265306 + 0.04164931281

Reorder the terms:
0.04164931281 + -0.4081632653t + t2 = 0.8163265306 + 0.04164931281

Combine like terms: 0.8163265306 + 0.04164931281 = 0.85797584341
0.04164931281 + -0.4081632653t + t2 = 0.85797584341

Factor a perfect square on the left side:
(t + -0.2040816327)(t + -0.2040816327) = 0.85797584341

Calculate the square root of the right side: 0.926269855

Break this problem into two subproblems by setting 
(t + -0.2040816327) equal to 0.926269855 and -0.926269855.

Subproblem 1

t + -0.2040816327 = 0.926269855 Simplifying t + -0.2040816327 = 0.926269855 Reorder the terms: -0.2040816327 + t = 0.926269855 Solving -0.2040816327 + t = 0.926269855 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 = 0.926269855 + 0.2040816327 Combine like terms: -0.2040816327 + 0.2040816327 = 0.0000000000 0.0000000000 + t = 0.926269855 + 0.2040816327 t = 0.926269855 + 0.2040816327 Combine like terms: 0.926269855 + 0.2040816327 = 1.1303514877 t = 1.1303514877 Simplifying t = 1.1303514877

Subproblem 2

t + -0.2040816327 = -0.926269855 Simplifying t + -0.2040816327 = -0.926269855 Reorder the terms: -0.2040816327 + t = -0.926269855 Solving -0.2040816327 + t = -0.926269855 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 = -0.926269855 + 0.2040816327 Combine like terms: -0.2040816327 + 0.2040816327 = 0.0000000000 0.0000000000 + t = -0.926269855 + 0.2040816327 t = -0.926269855 + 0.2040816327 Combine like terms: -0.926269855 + 0.2040816327 = -0.7221882223 t = -0.7221882223 Simplifying t = -0.7221882223

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.1303514877, -0.7221882223}

See similar equations:

| 3a+6=20 | | -7x+24=-x | | (2x-5)(4-3x)= | | F(x)=x^4-4x^2 | | 2[x-3]+1=7 | | 4(5b+2)=32+8b | | 23-7(2x)-12=4x-(77-2x) | | (X-8)+3=2(3x+7) | | -9+(-7m)=-23 | | 3x^5+15x-8=0 | | 2x^3+26x^2+24x= | | -3w-5-w+5= | | -3(5x-4)-2(3-2x)=(-40-10)*(-1) | | -3(x-w)-5(3w-2x)= | | -14x^2-31x-15=0 | | -2(-u-y)+2(6y-u)= | | 14x+70=-4x+4+7x | | 10x+y=58 | | 6x=70-8x | | 72+33t+3t^2= | | 4x+6y=12fory | | 1.2x+3.5=2.7 | | 7x+3=-5 | | 3x-15-2x=10 | | -5x-19+19=65 | | 20x^2+19x-28=0 | | 7x+52=x-8 | | x*35-107=768 | | -2(-6w-1)-w= | | 6z+7=43 | | 5m=4m-35 | | x*3+38=338 |

Equations solver categories