t^2+2t=17

Simple and best practice solution for t^2+2t=17 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+2t=17 equation:


Simplifying
t2 + 2t = 17

Reorder the terms:
2t + t2 = 17

Solving
2t + t2 = 17

Solving for variable 't'.

Reorder the terms:
-17 + 2t + t2 = 17 + -17

Combine like terms: 17 + -17 = 0
-17 + 2t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + 2t + 17 + t2 = 0 + 17

Reorder the terms:
-17 + 17 + 2t + t2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + 2t + t2 = 0 + 17
2t + t2 = 0 + 17

Combine like terms: 0 + 17 = 17
2t + t2 = 17

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 + 1

Reorder the terms:
1 + 2t + t2 = 17 + 1

Combine like terms: 17 + 1 = 18
1 + 2t + t2 = 18

Factor a perfect square on the left side:
(t + 1)(t + 1) = 18

Calculate the square root of the right side: 4.242640687

Break this problem into two subproblems by setting 
(t + 1) equal to 4.242640687 and -4.242640687.

Subproblem 1

t + 1 = 4.242640687 Simplifying t + 1 = 4.242640687 Reorder the terms: 1 + t = 4.242640687 Solving 1 + t = 4.242640687 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 = 4.242640687 + -1 Combine like terms: 1 + -1 = 0 0 + t = 4.242640687 + -1 t = 4.242640687 + -1 Combine like terms: 4.242640687 + -1 = 3.242640687 t = 3.242640687 Simplifying t = 3.242640687

Subproblem 2

t + 1 = -4.242640687 Simplifying t + 1 = -4.242640687 Reorder the terms: 1 + t = -4.242640687 Solving 1 + t = -4.242640687 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 = -4.242640687 + -1 Combine like terms: 1 + -1 = 0 0 + t = -4.242640687 + -1 t = -4.242640687 + -1 Combine like terms: -4.242640687 + -1 = -5.242640687 t = -5.242640687 Simplifying t = -5.242640687

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.242640687, -5.242640687}

See similar equations:

| x^2+24x-215=0 | | -4(2x-5)=100 | | y^3-6y^2-27=0 | | -11v=-176 | | (1+z)(4z-6)=0 | | 80x+10=50 | | (1/3)x=1/27 | | 6x+20=29 | | x^2-5x-6x=0 | | Y-12=56 | | -3=4+1x | | 17/3=x/5 | | -3(x+6)-6(2x+8)=-2(4-x)+9(x+8) | | -20=-20n | | -2y^4(5y^3-6y^2-4y)=0 | | 3(x-3)+6=5x-9 | | 5y^2-126y=9y^2 | | 3X(X+2)=8 | | -4y-2+5y=18 | | W/5-5=5 | | f(x)=3.5*2.3x | | 2r^2-6r^4-56n=0 | | 5x+13=8x-2 | | 1689*(2/3) | | 7/x-5=9/2x | | -8k+3k=23 | | (-5/2)*(17/15) | | m/3=8 | | 4y-2+5y=18 | | 7m-(5+4m)= | | y/1=7 | | -8(9-4z)=16 |

Equations solver categories