t^2+7t=11

Simple and best practice solution for t^2+7t=11 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+7t=11 equation:


Simplifying
t2 + 7t = 11

Reorder the terms:
7t + t2 = 11

Solving
7t + t2 = 11

Solving for variable 't'.

Reorder the terms:
-11 + 7t + t2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + 7t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 7t + 11 + t2 = 0 + 11

Reorder the terms:
-11 + 11 + 7t + t2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 7t + t2 = 0 + 11
7t + t2 = 0 + 11

Combine like terms: 0 + 11 = 11
7t + t2 = 11

The t term is 7t.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7t + 12.25 + t2 = 11 + 12.25

Reorder the terms:
12.25 + 7t + t2 = 11 + 12.25

Combine like terms: 11 + 12.25 = 23.25
12.25 + 7t + t2 = 23.25

Factor a perfect square on the left side:
(t + 3.5)(t + 3.5) = 23.25

Calculate the square root of the right side: 4.82182538

Break this problem into two subproblems by setting 
(t + 3.5) equal to 4.82182538 and -4.82182538.

Subproblem 1

t + 3.5 = 4.82182538 Simplifying t + 3.5 = 4.82182538 Reorder the terms: 3.5 + t = 4.82182538 Solving 3.5 + t = 4.82182538 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + t = 4.82182538 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + t = 4.82182538 + -3.5 t = 4.82182538 + -3.5 Combine like terms: 4.82182538 + -3.5 = 1.32182538 t = 1.32182538 Simplifying t = 1.32182538

Subproblem 2

t + 3.5 = -4.82182538 Simplifying t + 3.5 = -4.82182538 Reorder the terms: 3.5 + t = -4.82182538 Solving 3.5 + t = -4.82182538 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + t = -4.82182538 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + t = -4.82182538 + -3.5 t = -4.82182538 + -3.5 Combine like terms: -4.82182538 + -3.5 = -8.32182538 t = -8.32182538 Simplifying t = -8.32182538

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.32182538, -8.32182538}

See similar equations:

| 90/100=x/8917 | | -2m^2+12m+74=0 | | 6(d-73)=96 | | -5(x+4)-3(x-1)=-2(3-x)+15 | | (7x-54)=(8x-24) | | (5u-8)(7-u)=0 | | 35=((4x+50)-(3x+20)) | | X-47=92 | | (2AB)(3A)(5A)(7AB)= | | 8x-0.66(9x-6)=6 | | f(x)=10*2x | | 38=5t-27 | | 4w-16=4 | | 3=m/3-1 | | 2s-14=2 | | ?*15/2 | | 9+15+3= | | x+0.08875(x)=600 | | 8z-58=358 | | x+0.08375(x)=1396 | | 3x+3y+2x-y= | | x+0.07(x)=600 | | z=5+2*1.73 | | x+0.07(x)=1396 | | K-12=-12 | | 4(v-7)= | | x+0.07(x)=1299 | | 2v+22=5(v-1) | | 55x+1=0 | | 4+w=16 | | 7=15-2q | | 725000=.088/x |

Equations solver categories