8t^2+15t-450=0

Simple and best practice solution for 8t^2+15t-450=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 8t^2+15t-450=0 equation:


Simplifying
8t2 + 15t + -450 = 0

Reorder the terms:
-450 + 15t + 8t2 = 0

Solving
-450 + 15t + 8t2 = 0

Solving for variable 't'.

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

Divide each side by '8'.
-56.25 + 1.875t + t2 = 0

Move the constant term to the right:

Add '56.25' to each side of the equation.
-56.25 + 1.875t + 56.25 + t2 = 0 + 56.25

Reorder the terms:
-56.25 + 56.25 + 1.875t + t2 = 0 + 56.25

Combine like terms: -56.25 + 56.25 = 0.00
0.00 + 1.875t + t2 = 0 + 56.25
1.875t + t2 = 0 + 56.25

Combine like terms: 0 + 56.25 = 56.25
1.875t + t2 = 56.25

The t term is 1.875t.  Take half its coefficient (0.9375).
Square it (0.87890625) and add it to both sides.

Add '0.87890625' to each side of the equation.
1.875t + 0.87890625 + t2 = 56.25 + 0.87890625

Reorder the terms:
0.87890625 + 1.875t + t2 = 56.25 + 0.87890625

Combine like terms: 56.25 + 0.87890625 = 57.12890625
0.87890625 + 1.875t + t2 = 57.12890625

Factor a perfect square on the left side:
(t + 0.9375)(t + 0.9375) = 57.12890625

Calculate the square root of the right side: 7.558366639

Break this problem into two subproblems by setting 
(t + 0.9375) equal to 7.558366639 and -7.558366639.

Subproblem 1

t + 0.9375 = 7.558366639 Simplifying t + 0.9375 = 7.558366639 Reorder the terms: 0.9375 + t = 7.558366639 Solving 0.9375 + t = 7.558366639 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.9375' to each side of the equation. 0.9375 + -0.9375 + t = 7.558366639 + -0.9375 Combine like terms: 0.9375 + -0.9375 = 0.0000 0.0000 + t = 7.558366639 + -0.9375 t = 7.558366639 + -0.9375 Combine like terms: 7.558366639 + -0.9375 = 6.620866639 t = 6.620866639 Simplifying t = 6.620866639

Subproblem 2

t + 0.9375 = -7.558366639 Simplifying t + 0.9375 = -7.558366639 Reorder the terms: 0.9375 + t = -7.558366639 Solving 0.9375 + t = -7.558366639 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.9375' to each side of the equation. 0.9375 + -0.9375 + t = -7.558366639 + -0.9375 Combine like terms: 0.9375 + -0.9375 = 0.0000 0.0000 + t = -7.558366639 + -0.9375 t = -7.558366639 + -0.9375 Combine like terms: -7.558366639 + -0.9375 = -8.495866639 t = -8.495866639 Simplifying t = -8.495866639

Solution

The solution to the problem is based on the solutions from the subproblems. t = {6.620866639, -8.495866639}

See similar equations:

| 2/5-5=7 | | -7(n+11)=28 | | 2.4(x+4)=22 | | 8=6+2s | | Y=-3-3x^2 | | 8q=q+28 | | 31+4x=-7x-(1-3x) | | 3x+14+2x= | | 1+3+8x=19-7x | | 2p=p+30 | | (4Y-7)(1+Y)=0 | | 10x+15r=20 | | 6(x-2)+1=5x-3 | | 4t=-4t-35 | | -7x-8x+28=12+14 | | 1-3x=-3x+1 | | x+17+x+67+90=180 | | 25-2n=10 | | -5/9z=-15 | | 3X+-1=2X+9 | | 3.75+9.4x=9.4x+3.75 | | 3(k+10)=75 | | 3r=6k+jk | | 3x+8=2x+x-6 | | 6(x-3)+2=6x-15 | | 3(m+2)=2(2m+5) | | 720=4(x+18) | | 4+2b=-8 | | 11x+20+x=-3x | | 20+1x+13=5x-19 | | -2(7+k)=14 | | x*2*2+2xy+y*2=0 |

Equations solver categories