2t^2-7t=1

Simple and best practice solution for 2t^2-7t=1 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 2t^2-7t=1 equation:


Simplifying
2t2 + -7t = 1

Reorder the terms:
-7t + 2t2 = 1

Solving
-7t + 2t2 = 1

Solving for variable 't'.

Reorder the terms:
-1 + -7t + 2t2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -7t + 2t2 = 0

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

Divide each side by '2'.
-0.5 + -3.5t + t2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -3.5t + 0.5 + t2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -3.5t + t2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -3.5t + t2 = 0 + 0.5
-3.5t + t2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-3.5t + t2 = 0.5

The t term is -3.5t.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5t + 3.0625 + t2 = 0.5 + 3.0625

Reorder the terms:
3.0625 + -3.5t + t2 = 0.5 + 3.0625

Combine like terms: 0.5 + 3.0625 = 3.5625
3.0625 + -3.5t + t2 = 3.5625

Factor a perfect square on the left side:
(t + -1.75)(t + -1.75) = 3.5625

Calculate the square root of the right side: 1.887458609

Break this problem into two subproblems by setting 
(t + -1.75) equal to 1.887458609 and -1.887458609.

Subproblem 1

t + -1.75 = 1.887458609 Simplifying t + -1.75 = 1.887458609 Reorder the terms: -1.75 + t = 1.887458609 Solving -1.75 + t = 1.887458609 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + t = 1.887458609 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + t = 1.887458609 + 1.75 t = 1.887458609 + 1.75 Combine like terms: 1.887458609 + 1.75 = 3.637458609 t = 3.637458609 Simplifying t = 3.637458609

Subproblem 2

t + -1.75 = -1.887458609 Simplifying t + -1.75 = -1.887458609 Reorder the terms: -1.75 + t = -1.887458609 Solving -1.75 + t = -1.887458609 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + t = -1.887458609 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + t = -1.887458609 + 1.75 t = -1.887458609 + 1.75 Combine like terms: -1.887458609 + 1.75 = -0.137458609 t = -0.137458609 Simplifying t = -0.137458609

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.637458609, -0.137458609}

See similar equations:

| -2(2n+2)=14 | | 0.42x+5=8 | | t+-1=20 | | 4d+3=1-d | | 8+9r+r^2=0 | | 2x+4y=54 | | 15k+44=12+8 | | 7+d=25 | | 3x+11=x+33 | | -60=-17x+x^2 | | w=120+4000 | | 0=8p^2+32p | | 58-5k=13 | | 6y-2=64 | | 12p+5=4p+33 | | w+17=22 | | 4m+9=45 | | -14=2x+2 | | 9-3a=-3 | | 8y^2-13y-6=0 | | 171.541x+94.083y=110.836 | | 14-y-y=4 | | 42-8=-2 | | 8+3m=41 | | 1.25s-0.5=1.3 | | 30+13a+a^2=0 | | 88-3x=15x+20 | | 2750(-1650-100)=a | | C=2*3.14*39.25 | | 2750(1650-100)=a | | 10x-2y+6=0 | | y-12=14 |

Equations solver categories