-4.9t^2+11t+400=0

Simple and best practice solution for -4.9t^2+11t+400=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+11t+400=0 equation:


Simplifying
-4.9t2 + 11t + 400 = 0

Reorder the terms:
400 + 11t + -4.9t2 = 0

Solving
400 + 11t + -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'.
-81.63265306 + -2.244897959t + t2 = 0

Move the constant term to the right:

Add '81.63265306' to each side of the equation.
-81.63265306 + -2.244897959t + 81.63265306 + t2 = 0 + 81.63265306

Reorder the terms:
-81.63265306 + 81.63265306 + -2.244897959t + t2 = 0 + 81.63265306

Combine like terms: -81.63265306 + 81.63265306 = 0.00000000
0.00000000 + -2.244897959t + t2 = 0 + 81.63265306
-2.244897959t + t2 = 0 + 81.63265306

Combine like terms: 0 + 81.63265306 = 81.63265306
-2.244897959t + t2 = 81.63265306

The t term is -2.244897959t.  Take half its coefficient (-1.12244898).
Square it (1.259891713) and add it to both sides.

Add '1.259891713' to each side of the equation.
-2.244897959t + 1.259891713 + t2 = 81.63265306 + 1.259891713

Reorder the terms:
1.259891713 + -2.244897959t + t2 = 81.63265306 + 1.259891713

Combine like terms: 81.63265306 + 1.259891713 = 82.892544773
1.259891713 + -2.244897959t + t2 = 82.892544773

Factor a perfect square on the left side:
(t + -1.12244898)(t + -1.12244898) = 82.892544773

Calculate the square root of the right side: 9.104534297

Break this problem into two subproblems by setting 
(t + -1.12244898) equal to 9.104534297 and -9.104534297.

Subproblem 1

t + -1.12244898 = 9.104534297 Simplifying t + -1.12244898 = 9.104534297 Reorder the terms: -1.12244898 + t = 9.104534297 Solving -1.12244898 + t = 9.104534297 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.12244898' to each side of the equation. -1.12244898 + 1.12244898 + t = 9.104534297 + 1.12244898 Combine like terms: -1.12244898 + 1.12244898 = 0.00000000 0.00000000 + t = 9.104534297 + 1.12244898 t = 9.104534297 + 1.12244898 Combine like terms: 9.104534297 + 1.12244898 = 10.226983277 t = 10.226983277 Simplifying t = 10.226983277

Subproblem 2

t + -1.12244898 = -9.104534297 Simplifying t + -1.12244898 = -9.104534297 Reorder the terms: -1.12244898 + t = -9.104534297 Solving -1.12244898 + t = -9.104534297 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.12244898' to each side of the equation. -1.12244898 + 1.12244898 + t = -9.104534297 + 1.12244898 Combine like terms: -1.12244898 + 1.12244898 = 0.00000000 0.00000000 + t = -9.104534297 + 1.12244898 t = -9.104534297 + 1.12244898 Combine like terms: -9.104534297 + 1.12244898 = -7.982085317 t = -7.982085317 Simplifying t = -7.982085317

Solution

The solution to the problem is based on the solutions from the subproblems. t = {10.226983277, -7.982085317}

See similar equations:

| (-1/4y^4)(5/8y^2) | | 2x=10x+48 | | 6x-12y+2=0 | | 10=p-s | | 4x-3=2+8x-5-x | | 1/2{6-y}=y | | 2(x+9)+3x+10-25=360 | | (6)arcsin(5x)=-pi | | 7m^2-175=0 | | 2x=3x+42 | | -28x^2+7x+35=0 | | 1/2[6-y]=y | | 4x+3x=12y | | 10+3r=-4r+5r | | 3(4+2x)=21 | | 7y+10x-8=0 | | 6*arcsin(5x)=-pi | | 2x+2(x-2)=44 | | 21=-2(7x+4)-(1-4x) | | 5w^3+4w^2-20w-16=0 | | 0=5w^3+4w^2-20w-16 | | 2x+2(x-4)=20 | | 6arcsin(5x)=-pi | | -4x-6x=-16-6x | | 4x-(x+12)=12 | | 5u+v+7u+14v= | | x+1=3x-15 | | (4x-1)(3x+2)= | | -98=-7(y+6) | | =4x-(-5) | | 5(4k+3)=-105 | | X-2=-.16x+.33 |

Equations solver categories