2t^2+7t+3t^2+1=0

Simple and best practice solution for 2t^2+7t+3t^2+1=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 2t^2+7t+3t^2+1=0 equation:


Simplifying
2t2 + 7t + 3t2 + 1 = 0

Reorder the terms:
1 + 7t + 2t2 + 3t2 = 0

Combine like terms: 2t2 + 3t2 = 5t2
1 + 7t + 5t2 = 0

Solving
1 + 7t + 5t2 = 0

Solving for variable 't'.

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

Divide each side by '5'.
0.2 + 1.4t + t2 = 0

Move the constant term to the right:

Add '-0.2' to each side of the equation.
0.2 + 1.4t + -0.2 + t2 = 0 + -0.2

Reorder the terms:
0.2 + -0.2 + 1.4t + t2 = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + 1.4t + t2 = 0 + -0.2
1.4t + t2 = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
1.4t + t2 = -0.2

The t term is 1.4t.  Take half its coefficient (0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
1.4t + 0.49 + t2 = -0.2 + 0.49

Reorder the terms:
0.49 + 1.4t + t2 = -0.2 + 0.49

Combine like terms: -0.2 + 0.49 = 0.29
0.49 + 1.4t + t2 = 0.29

Factor a perfect square on the left side:
(t + 0.7)(t + 0.7) = 0.29

Calculate the square root of the right side: 0.538516481

Break this problem into two subproblems by setting 
(t + 0.7) equal to 0.538516481 and -0.538516481.

Subproblem 1

t + 0.7 = 0.538516481 Simplifying t + 0.7 = 0.538516481 Reorder the terms: 0.7 + t = 0.538516481 Solving 0.7 + t = 0.538516481 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.7' to each side of the equation. 0.7 + -0.7 + t = 0.538516481 + -0.7 Combine like terms: 0.7 + -0.7 = 0.0 0.0 + t = 0.538516481 + -0.7 t = 0.538516481 + -0.7 Combine like terms: 0.538516481 + -0.7 = -0.161483519 t = -0.161483519 Simplifying t = -0.161483519

Subproblem 2

t + 0.7 = -0.538516481 Simplifying t + 0.7 = -0.538516481 Reorder the terms: 0.7 + t = -0.538516481 Solving 0.7 + t = -0.538516481 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.7' to each side of the equation. 0.7 + -0.7 + t = -0.538516481 + -0.7 Combine like terms: 0.7 + -0.7 = 0.0 0.0 + t = -0.538516481 + -0.7 t = -0.538516481 + -0.7 Combine like terms: -0.538516481 + -0.7 = -1.238516481 t = -1.238516481 Simplifying t = -1.238516481

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.161483519, -1.238516481}

See similar equations:

| -8(x+1)=-2x+40 | | 3a-2b=13 | | 4x+5y-y+3x= | | -4(7r-5)=20+6r | | x^2-16x+64=x^2+4x+44 | | -4(-8a-5)=-8+4a | | 12p^2+20p-8=0 | | -6x=x-70 | | 16+4y=-32 | | -x=7x-48 | | 30x-48=6x-24 | | -12-8x=2x+4(-3x-6) | | 3n=0.45 | | 4y-8=6y+10 | | 9x+-7=-7 | | 11x=-400-9x | | -42=6b+8 | | 7x=45-2x | | x+x-18=66 | | 9x=34+8x | | 23x-12=-33 | | 6x^2=28x-16 | | -6x=1-70 | | 4w^2-5w-6=0 | | 3x+(2)*7*8=9x-4x | | -1=7x-48 | | (5y-2)-(8y+3)=16 | | 14x+30=16x | | 1-(5-11x)=24-(10-8x) | | 12=3y-12 | | 09(11-k)=3(3k-9) | | W=3x+c |

Equations solver categories