t^2+15t-200=0

Simple and best practice solution for t^2+15t-200=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 t^2+15t-200=0 equation:


Simplifying
t2 + 15t + -200 = 0

Reorder the terms:
-200 + 15t + t2 = 0

Solving
-200 + 15t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '200' to each side of the equation.
-200 + 15t + 200 + t2 = 0 + 200

Reorder the terms:
-200 + 200 + 15t + t2 = 0 + 200

Combine like terms: -200 + 200 = 0
0 + 15t + t2 = 0 + 200
15t + t2 = 0 + 200

Combine like terms: 0 + 200 = 200
15t + t2 = 200

The t term is 15t.  Take half its coefficient (7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
15t + 56.25 + t2 = 200 + 56.25

Reorder the terms:
56.25 + 15t + t2 = 200 + 56.25

Combine like terms: 200 + 56.25 = 256.25
56.25 + 15t + t2 = 256.25

Factor a perfect square on the left side:
(t + 7.5)(t + 7.5) = 256.25

Calculate the square root of the right side: 16.007810594

Break this problem into two subproblems by setting 
(t + 7.5) equal to 16.007810594 and -16.007810594.

Subproblem 1

t + 7.5 = 16.007810594 Simplifying t + 7.5 = 16.007810594 Reorder the terms: 7.5 + t = 16.007810594 Solving 7.5 + t = 16.007810594 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-7.5' to each side of the equation. 7.5 + -7.5 + t = 16.007810594 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + t = 16.007810594 + -7.5 t = 16.007810594 + -7.5 Combine like terms: 16.007810594 + -7.5 = 8.507810594 t = 8.507810594 Simplifying t = 8.507810594

Subproblem 2

t + 7.5 = -16.007810594 Simplifying t + 7.5 = -16.007810594 Reorder the terms: 7.5 + t = -16.007810594 Solving 7.5 + t = -16.007810594 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-7.5' to each side of the equation. 7.5 + -7.5 + t = -16.007810594 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + t = -16.007810594 + -7.5 t = -16.007810594 + -7.5 Combine like terms: -16.007810594 + -7.5 = -23.507810594 t = -23.507810594 Simplifying t = -23.507810594

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.507810594, -23.507810594}

See similar equations:

| 5(3x+5)=70 | | 26x+11x^2=21 | | -8x-8=4(-2x-1) | | -2(5z+3)=-10z+8 | | (x+(x*.25))+2.35=10 | | 4(2x+9)=44 | | m+8m-4m-4= | | -2.166x-3.8+1=1.1 | | 2y=4x+120 | | (x+x*.25)+2.35=10 | | -8x+3x+19-12x= | | 3x^2+-11x+4=0 | | 15-t+8=-13 | | x^2-105x+731=0 | | 3x-12=14+5c | | (x+x*.75)+2.35=10 | | x+5y=17.55 | | 25-3(7+3)+8-2= | | -6y+24=-2(3y+7) | | 4/5x-9=63 | | (x*.75)+2.35=10 | | -3(6+3x)=-38-4x | | 14-3x=-(x-4) | | 2x-5x-13=3x+5-13 | | 3(x+5)+2=32 | | 12+8f=36 | | 30=4(3x+5)-2 | | 5-7(-7y+7)= | | 5.8x+3.4+1=2.7412 | | 3(3x+5)=6 | | -1/5x-3/5=6/5x-5/6 | | 24+3t=3 |

Equations solver categories