86=-10t+5t^2

Simple and best practice solution for 86=-10t+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 86=-10t+5t^2 equation:


Simplifying
86 = -10t + 5t2

Solving
86 = -10t + 5t2

Solving for variable 't'.

Reorder the terms:
86 + 10t + -5t2 = -10t + 10t + 5t2 + -5t2

Combine like terms: -10t + 10t = 0
86 + 10t + -5t2 = 0 + 5t2 + -5t2
86 + 10t + -5t2 = 5t2 + -5t2

Combine like terms: 5t2 + -5t2 = 0
86 + 10t + -5t2 = 0

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

Divide each side by '-5'.
-17.2 + -2t + t2 = 0

Move the constant term to the right:

Add '17.2' to each side of the equation.
-17.2 + -2t + 17.2 + t2 = 0 + 17.2

Reorder the terms:
-17.2 + 17.2 + -2t + t2 = 0 + 17.2

Combine like terms: -17.2 + 17.2 = 0.0
0.0 + -2t + t2 = 0 + 17.2
-2t + t2 = 0 + 17.2

Combine like terms: 0 + 17.2 = 17.2
-2t + t2 = 17.2

The t term is -2t.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2t + 1 + t2 = 17.2 + 1

Reorder the terms:
1 + -2t + t2 = 17.2 + 1

Combine like terms: 17.2 + 1 = 18.2
1 + -2t + t2 = 18.2

Factor a perfect square on the left side:
(t + -1)(t + -1) = 18.2

Calculate the square root of the right side: 4.266145802

Break this problem into two subproblems by setting 
(t + -1) equal to 4.266145802 and -4.266145802.

Subproblem 1

t + -1 = 4.266145802 Simplifying t + -1 = 4.266145802 Reorder the terms: -1 + t = 4.266145802 Solving -1 + t = 4.266145802 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + t = 4.266145802 + 1 Combine like terms: -1 + 1 = 0 0 + t = 4.266145802 + 1 t = 4.266145802 + 1 Combine like terms: 4.266145802 + 1 = 5.266145802 t = 5.266145802 Simplifying t = 5.266145802

Subproblem 2

t + -1 = -4.266145802 Simplifying t + -1 = -4.266145802 Reorder the terms: -1 + t = -4.266145802 Solving -1 + t = -4.266145802 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + t = -4.266145802 + 1 Combine like terms: -1 + 1 = 0 0 + t = -4.266145802 + 1 t = -4.266145802 + 1 Combine like terms: -4.266145802 + 1 = -3.266145802 t = -3.266145802 Simplifying t = -3.266145802

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.266145802, -3.266145802}

See similar equations:

| -3x^2+45x-150=0 | | 945=45x+6 | | 125=(29-X)+X | | 3b+2+4=9 | | 5t^2-12t+63=0 | | 7y+2x=2 | | 6+5b=-9 | | 3h=4-21h | | m+2n=ym-5 | | 3h=14-21h-10 | | 75=13x | | (7x^2-10)(6x^2-3x)=0 | | -3(6p+5)-2(4-17p)=3(7+5p) | | 3h=14-21-10 | | 6x-4(x-1)=22 | | 2b-1a= | | 4+r^2=29 | | 6x^3-21x^2-96x+336=0 | | (x+4)/32=35/56 | | 4+2m=7m | | 3(5)-7*-10=-80 | | d=rt-5t^2 | | x^3+17x^2+15x-77=0 | | 3n-7*-10=-80 | | 2.5d+2=7-1.5d | | 5-4(y+1)=1.3y | | 3.21-16=4a | | 5(x-4)+3x-9x=6(2x+5)+8 | | 6+0.75e=2-1.25e | | 6-(2x+4)=-12 | | 7x^2-4x-80=0 | | 3(n+8)=60 |

Equations solver categories