57=-12t+5t^2

Simple and best practice solution for 57=-12t+5t^2 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 57=-12t+5t^2 equation:


Simplifying
57 = -12t + 5t2

Solving
57 = -12t + 5t2

Solving for variable 't'.

Reorder the terms:
57 + 12t + -5t2 = -12t + 12t + 5t2 + -5t2

Combine like terms: -12t + 12t = 0
57 + 12t + -5t2 = 0 + 5t2 + -5t2
57 + 12t + -5t2 = 5t2 + -5t2

Combine like terms: 5t2 + -5t2 = 0
57 + 12t + -5t2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-11.4 + -2.4t + t2 = 0

Move the constant term to the right:

Add '11.4' to each side of the equation.
-11.4 + -2.4t + 11.4 + t2 = 0 + 11.4

Reorder the terms:
-11.4 + 11.4 + -2.4t + t2 = 0 + 11.4

Combine like terms: -11.4 + 11.4 = 0.0
0.0 + -2.4t + t2 = 0 + 11.4
-2.4t + t2 = 0 + 11.4

Combine like terms: 0 + 11.4 = 11.4
-2.4t + t2 = 11.4

The t term is -2.4t.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4t + 1.44 + t2 = 11.4 + 1.44

Reorder the terms:
1.44 + -2.4t + t2 = 11.4 + 1.44

Combine like terms: 11.4 + 1.44 = 12.84
1.44 + -2.4t + t2 = 12.84

Factor a perfect square on the left side:
(t + -1.2)(t + -1.2) = 12.84

Calculate the square root of the right side: 3.583294573

Break this problem into two subproblems by setting 
(t + -1.2) equal to 3.583294573 and -3.583294573.

Subproblem 1

t + -1.2 = 3.583294573 Simplifying t + -1.2 = 3.583294573 Reorder the terms: -1.2 + t = 3.583294573 Solving -1.2 + t = 3.583294573 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + t = 3.583294573 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + t = 3.583294573 + 1.2 t = 3.583294573 + 1.2 Combine like terms: 3.583294573 + 1.2 = 4.783294573 t = 4.783294573 Simplifying t = 4.783294573

Subproblem 2

t + -1.2 = -3.583294573 Simplifying t + -1.2 = -3.583294573 Reorder the terms: -1.2 + t = -3.583294573 Solving -1.2 + t = -3.583294573 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + t = -3.583294573 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + t = -3.583294573 + 1.2 t = -3.583294573 + 1.2 Combine like terms: -3.583294573 + 1.2 = -2.383294573 t = -2.383294573 Simplifying t = -2.383294573

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.783294573, -2.383294573}

See similar equations:

| 9-4b=5 | | 9-5b=4 | | x-3=53 | | 3(x+1)+6=12 | | 5t^2-4t-86=0 | | 3x-4=3*(2x+5) | | 4j=3.2 | | 80-(4-1)*x=80-3x | | 4x=36-5y | | 80-(4-1)*x=8+x | | -9-(-3)+2-7=x | | x+y=12xy=32 | | -6(-x+5)+7(3x+1)=-5(x-2) | | .6(-x+5)+7(3x+1)=-5(x-2) | | 55=5x+3 | | 8x+22=30 | | 41=8q+1 | | 72=6k | | 7x(-8+2x)=4-(3x-12) | | 3x-1+15x-17=180 | | 3x-1+129+15x-17=90 | | 8-7x-3=-5+4x-12 | | 3x-1+129+15x-17=180 | | 2(2x-2)+15=2(4+x)+3 | | -2x-13=9x+20 | | 13x+1+7x+19=180 | | 2[6x-4(y-1)]= | | 10+2p=3(3+4p) | | 12x+7-2x+5= | | 5x-14+x+8=90 | | 5x+2+8x-25=90 | | 24-3(6)(4)= |

Equations solver categories