t^2+5t-16=0

Simple and best practice solution for t^2+5t-16=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+5t-16=0 equation:


Simplifying
t2 + 5t + -16 = 0

Reorder the terms:
-16 + 5t + t2 = 0

Solving
-16 + 5t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + 5t + 16 + t2 = 0 + 16

Reorder the terms:
-16 + 16 + 5t + t2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 5t + t2 = 0 + 16
5t + t2 = 0 + 16

Combine like terms: 0 + 16 = 16
5t + t2 = 16

The t term is 5t.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5t + 6.25 + t2 = 16 + 6.25

Reorder the terms:
6.25 + 5t + t2 = 16 + 6.25

Combine like terms: 16 + 6.25 = 22.25
6.25 + 5t + t2 = 22.25

Factor a perfect square on the left side:
(t + 2.5)(t + 2.5) = 22.25

Calculate the square root of the right side: 4.716990566

Break this problem into two subproblems by setting 
(t + 2.5) equal to 4.716990566 and -4.716990566.

Subproblem 1

t + 2.5 = 4.716990566 Simplifying t + 2.5 = 4.716990566 Reorder the terms: 2.5 + t = 4.716990566 Solving 2.5 + t = 4.716990566 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + t = 4.716990566 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + t = 4.716990566 + -2.5 t = 4.716990566 + -2.5 Combine like terms: 4.716990566 + -2.5 = 2.216990566 t = 2.216990566 Simplifying t = 2.216990566

Subproblem 2

t + 2.5 = -4.716990566 Simplifying t + 2.5 = -4.716990566 Reorder the terms: 2.5 + t = -4.716990566 Solving 2.5 + t = -4.716990566 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + t = -4.716990566 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + t = -4.716990566 + -2.5 t = -4.716990566 + -2.5 Combine like terms: -4.716990566 + -2.5 = -7.216990566 t = -7.216990566 Simplifying t = -7.216990566

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.216990566, -7.216990566}

See similar equations:

| 4-5p=39 | | 15x-8=14x+3 | | ab=cd+ad | | -7(1-3n)=27+4n | | 8r-72=5r+25 | | -2-6(m-3)=-19-m | | 9+-7k=2+-77 | | 25x^2-1000x+100=0 | | .50-66.6x=.25 | | 3x^2-16x=-4x^2-3x-6 | | 5-7r=-5(r-3) | | 2.5+2n=2.75 | | x^2-40x+4=0 | | 10-0.5=14 | | 8(3x-19)=15x+73 | | 3x+4-6x=-x+8 | | -3v+8=22 | | 15=3(2q-1) | | 13+4a=-3 | | 8x-7=-3(1-4x)-8x | | 10x^2-1015x+100=0 | | 4x+22=-2(14+3x) | | 2.7+6s+1.8=6.5 | | 3[2-4(2x-1)]=-10x-10 | | x^2=x-32 | | 5(4+8x)+6=26+8x | | 6-2(5x-8)=-2(2x+1) | | 6x+9=9x-16 | | -4x-10=-25+x | | 0.4e-0.04+0.4e=2.66 | | 16x^5-2x^2=0 | | 4-x=-3x-8 |

Equations solver categories