0=-4.9t^2+18t-11

Simple and best practice solution for 0=-4.9t^2+18t-11 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 0=-4.9t^2+18t-11 equation:


Simplifying
0 = -4.9t2 + 18t + -11

Reorder the terms:
0 = -11 + 18t + -4.9t2

Solving
0 = -11 + 18t + -4.9t2

Solving for variable 't'.

Combine like terms: 0 + 11 = 11
11 + -18t + 4.9t2 = -11 + 18t + -4.9t2 + 11 + -18t + 4.9t2

Reorder the terms:
11 + -18t + 4.9t2 = -11 + 11 + 18t + -18t + -4.9t2 + 4.9t2

Combine like terms: -11 + 11 = 0
11 + -18t + 4.9t2 = 0 + 18t + -18t + -4.9t2 + 4.9t2
11 + -18t + 4.9t2 = 18t + -18t + -4.9t2 + 4.9t2

Combine like terms: 18t + -18t = 0
11 + -18t + 4.9t2 = 0 + -4.9t2 + 4.9t2
11 + -18t + 4.9t2 = -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
11 + -18t + 4.9t2 = 0.0

Begin completing the square.  Divide all terms by
4.9 the coefficient of the squared term: 

Divide each side by '4.9'.
2.244897959 + -3.673469388t + t2 = 0

Move the constant term to the right:

Add '-2.244897959' to each side of the equation.
2.244897959 + -3.673469388t + -2.244897959 + t2 = 0 + -2.244897959

Reorder the terms:
2.244897959 + -2.244897959 + -3.673469388t + t2 = 0 + -2.244897959

Combine like terms: 2.244897959 + -2.244897959 = 0.000000000
0.000000000 + -3.673469388t + t2 = 0 + -2.244897959
-3.673469388t + t2 = 0 + -2.244897959

Combine like terms: 0 + -2.244897959 = -2.244897959
-3.673469388t + t2 = -2.244897959

The t term is -3.673469388t.  Take half its coefficient (-1.836734694).
Square it (3.373594336) and add it to both sides.

Add '3.373594336' to each side of the equation.
-3.673469388t + 3.373594336 + t2 = -2.244897959 + 3.373594336

Reorder the terms:
3.373594336 + -3.673469388t + t2 = -2.244897959 + 3.373594336

Combine like terms: -2.244897959 + 3.373594336 = 1.128696377
3.373594336 + -3.673469388t + t2 = 1.128696377

Factor a perfect square on the left side:
(t + -1.836734694)(t + -1.836734694) = 1.128696377

Calculate the square root of the right side: 1.062401232

Break this problem into two subproblems by setting 
(t + -1.836734694) equal to 1.062401232 and -1.062401232.

Subproblem 1

t + -1.836734694 = 1.062401232 Simplifying t + -1.836734694 = 1.062401232 Reorder the terms: -1.836734694 + t = 1.062401232 Solving -1.836734694 + t = 1.062401232 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.836734694' to each side of the equation. -1.836734694 + 1.836734694 + t = 1.062401232 + 1.836734694 Combine like terms: -1.836734694 + 1.836734694 = 0.000000000 0.000000000 + t = 1.062401232 + 1.836734694 t = 1.062401232 + 1.836734694 Combine like terms: 1.062401232 + 1.836734694 = 2.899135926 t = 2.899135926 Simplifying t = 2.899135926

Subproblem 2

t + -1.836734694 = -1.062401232 Simplifying t + -1.836734694 = -1.062401232 Reorder the terms: -1.836734694 + t = -1.062401232 Solving -1.836734694 + t = -1.062401232 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.836734694' to each side of the equation. -1.836734694 + 1.836734694 + t = -1.062401232 + 1.836734694 Combine like terms: -1.836734694 + 1.836734694 = 0.000000000 0.000000000 + t = -1.062401232 + 1.836734694 t = -1.062401232 + 1.836734694 Combine like terms: -1.062401232 + 1.836734694 = 0.774333462 t = 0.774333462 Simplifying t = 0.774333462

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.899135926, 0.774333462}

See similar equations:

| 3x-4(X+2)=5(X-1) | | -26/5+29x/5=-1/5(-4x+1) | | 0.15s-7=5.55 | | 7x-1(4x+39)=0 | | ay+by=m | | 5-2x+2= | | 2b+6=-a-8 | | x^2-28x+40=0 | | -7-3x+(x)(x)=0 | | 15-6=4+1 | | A+c^2-6=0 | | 4=x-9 | | 4x-2x+2=2x+4 | | 9(7+k)+(6k+2)2= | | x-14=40 | | 4+4x=4x+100 | | x^2-28+40=0 | | 5v+4v=36 | | 10x-10=25x+50 | | 6x-20=2y | | -14+m=0 | | 12x-6(x+3)=6 | | 88=18+7(x+3) | | 1.5x+x=6000 | | 1.5(y+4)=7.5y-9 | | 2x+3(x+2)=8(x+6)+2+x | | 12+6-8x-4x-3+12= | | -28+U=-15 | | -x-20=2x+7 | | 5(9+6)=5 | | u=2(9n+35)+5(n+1) | | -6x-3=11 |

Equations solver categories