t^2-10t-80=0

Simple and best practice solution for t^2-10t-80=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^2-10t-80=0 equation:


Simplifying
t2 + -10t + -80 = 0

Reorder the terms:
-80 + -10t + t2 = 0

Solving
-80 + -10t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '80' to each side of the equation.
-80 + -10t + 80 + t2 = 0 + 80

Reorder the terms:
-80 + 80 + -10t + t2 = 0 + 80

Combine like terms: -80 + 80 = 0
0 + -10t + t2 = 0 + 80
-10t + t2 = 0 + 80

Combine like terms: 0 + 80 = 80
-10t + t2 = 80

The t term is -10t.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10t + 25 + t2 = 80 + 25

Reorder the terms:
25 + -10t + t2 = 80 + 25

Combine like terms: 80 + 25 = 105
25 + -10t + t2 = 105

Factor a perfect square on the left side:
(t + -5)(t + -5) = 105

Calculate the square root of the right side: 10.246950766

Break this problem into two subproblems by setting 
(t + -5) equal to 10.246950766 and -10.246950766.

Subproblem 1

t + -5 = 10.246950766 Simplifying t + -5 = 10.246950766 Reorder the terms: -5 + t = 10.246950766 Solving -5 + t = 10.246950766 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = 10.246950766 + 5 Combine like terms: -5 + 5 = 0 0 + t = 10.246950766 + 5 t = 10.246950766 + 5 Combine like terms: 10.246950766 + 5 = 15.246950766 t = 15.246950766 Simplifying t = 15.246950766

Subproblem 2

t + -5 = -10.246950766 Simplifying t + -5 = -10.246950766 Reorder the terms: -5 + t = -10.246950766 Solving -5 + t = -10.246950766 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = -10.246950766 + 5 Combine like terms: -5 + 5 = 0 0 + t = -10.246950766 + 5 t = -10.246950766 + 5 Combine like terms: -10.246950766 + 5 = -5.246950766 t = -5.246950766 Simplifying t = -5.246950766

Solution

The solution to the problem is based on the solutions from the subproblems. t = {15.246950766, -5.246950766}

See similar equations:

| (2x^2-3)+(3x^2+4)=0 | | 3x-10=-34 | | -16x^2+34x+50=0 | | 0.80=(925.4-33.05x)/(925.4-28x) | | 16x^2+34x+50=0 | | 7x-7=-21 | | (2x+5)-(4x-6)=0 | | 2x+1/2-6x-1/4=-5/12 | | 46+4= | | 5-12/x=3 | | 4x+3x-5+8=0 | | 0.6808=(136.779-35.9x)/(136.779-5.74x) | | 3x+2-5=0 | | 0.6808=(225.008-39.2x)/(225.008-5.74x) | | 10-2k=6 | | 150-(-35)+20= | | 2a-b=16 | | -25+29= | | 2x+3x+(3x+32)=360 | | -5-13= | | -5-(-13)= | | 0.7834=(21.8694-5.74x)/(21.8694-3.81x) | | x+(x-12)=180 | | x+x-12=180 | | n-(-13)=-5 | | -7+-25= | | 1/a=8/7a-1/14 | | 0.5333=(136.779-35.9x)/(136.779-3.81x) | | 1.8+.03x=.17x-1 | | 4xy+3x-2y+5xy= | | 14y-9y= | | -4x+1=x+36-7 |

Equations solver categories