4.9t^2+9t+3=0

Simple and best practice solution for 4.9t^2+9t+3=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+9t+3=0 equation:


Simplifying
4.9t2 + 9t + 3 = 0

Reorder the terms:
3 + 9t + 4.9t2 = 0

Solving
3 + 9t + 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'.
0.612244898 + 1.836734694t + t2 = 0

Move the constant term to the right:

Add '-0.612244898' to each side of the equation.
0.612244898 + 1.836734694t + -0.612244898 + t2 = 0 + -0.612244898

Reorder the terms:
0.612244898 + -0.612244898 + 1.836734694t + t2 = 0 + -0.612244898

Combine like terms: 0.612244898 + -0.612244898 = 0.000000000
0.000000000 + 1.836734694t + t2 = 0 + -0.612244898
1.836734694t + t2 = 0 + -0.612244898

Combine like terms: 0 + -0.612244898 = -0.612244898
1.836734694t + t2 = -0.612244898

The t term is 1.836734694t.  Take half its coefficient (0.918367347).
Square it (0.8433985840) and add it to both sides.

Add '0.8433985840' to each side of the equation.
1.836734694t + 0.8433985840 + t2 = -0.612244898 + 0.8433985840

Reorder the terms:
0.8433985840 + 1.836734694t + t2 = -0.612244898 + 0.8433985840

Combine like terms: -0.612244898 + 0.8433985840 = 0.231153686
0.8433985840 + 1.836734694t + t2 = 0.231153686

Factor a perfect square on the left side:
(t + 0.918367347)(t + 0.918367347) = 0.231153686

Calculate the square root of the right side: 0.480784449

Break this problem into two subproblems by setting 
(t + 0.918367347) equal to 0.480784449 and -0.480784449.

Subproblem 1

t + 0.918367347 = 0.480784449 Simplifying t + 0.918367347 = 0.480784449 Reorder the terms: 0.918367347 + t = 0.480784449 Solving 0.918367347 + t = 0.480784449 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.918367347' to each side of the equation. 0.918367347 + -0.918367347 + t = 0.480784449 + -0.918367347 Combine like terms: 0.918367347 + -0.918367347 = 0.000000000 0.000000000 + t = 0.480784449 + -0.918367347 t = 0.480784449 + -0.918367347 Combine like terms: 0.480784449 + -0.918367347 = -0.437582898 t = -0.437582898 Simplifying t = -0.437582898

Subproblem 2

t + 0.918367347 = -0.480784449 Simplifying t + 0.918367347 = -0.480784449 Reorder the terms: 0.918367347 + t = -0.480784449 Solving 0.918367347 + t = -0.480784449 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.918367347' to each side of the equation. 0.918367347 + -0.918367347 + t = -0.480784449 + -0.918367347 Combine like terms: 0.918367347 + -0.918367347 = 0.000000000 0.000000000 + t = -0.480784449 + -0.918367347 t = -0.480784449 + -0.918367347 Combine like terms: -0.480784449 + -0.918367347 = -1.399151796 t = -1.399151796 Simplifying t = -1.399151796

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.437582898, -1.399151796}

See similar equations:

| -2z(5z-4)+6z=-4 | | 2.5r-(2-5r)=2.6+6.1r | | 7x+24=x^2+12 | | 7xy+63x+14y= | | X^2-7=5x | | 5d^2-2d-8=0 | | -2(x-1)+(x-14)=-x-14 | | 12x^2-96x=144 | | 6z+4=9z+9 | | 4.9t+9t+3=0 | | 3z+5=9z+9 | | 3x^2+24x+48=8 | | 100+.30x=80+.80x | | 4p^2=-12p-9 | | 2(3a+4)=6 | | 2a-9=4(3a+1)-6 | | 6x^2+26x=-28 | | 40x^2-88x+48= | | 2(5x-13)-x=3(x-3)+7 | | 2m+6-4m=6 | | 4a-21=7a | | 3(x+1)=4y | | 4x+12=3x-10 | | 2y(x+2x)= | | 8d=-48 | | 3+2x=-41 | | -2(3t-5)+3t=8t-4 | | 8x+5+10x-7=180 | | 6x^2+13x+42.25=28+42.25 | | 5-5-3t= | | 19-n=38 | | 0.54(12)+0.06x=0.18(6+x) |

Equations solver categories