5t^2+4t-120=0

Simple and best practice solution for 5t^2+4t-120=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 5t^2+4t-120=0 equation:


Simplifying
5t2 + 4t + -120 = 0

Reorder the terms:
-120 + 4t + 5t2 = 0

Solving
-120 + 4t + 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'.
-24 + 0.8t + t2 = 0

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + 0.8t + 24 + t2 = 0 + 24

Reorder the terms:
-24 + 24 + 0.8t + t2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 0.8t + t2 = 0 + 24
0.8t + t2 = 0 + 24

Combine like terms: 0 + 24 = 24
0.8t + t2 = 24

The t term is 0.8t.  Take half its coefficient (0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
0.8t + 0.16 + t2 = 24 + 0.16

Reorder the terms:
0.16 + 0.8t + t2 = 24 + 0.16

Combine like terms: 24 + 0.16 = 24.16
0.16 + 0.8t + t2 = 24.16

Factor a perfect square on the left side:
(t + 0.4)(t + 0.4) = 24.16

Calculate the square root of the right side: 4.915282291

Break this problem into two subproblems by setting 
(t + 0.4) equal to 4.915282291 and -4.915282291.

Subproblem 1

t + 0.4 = 4.915282291 Simplifying t + 0.4 = 4.915282291 Reorder the terms: 0.4 + t = 4.915282291 Solving 0.4 + t = 4.915282291 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + t = 4.915282291 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + t = 4.915282291 + -0.4 t = 4.915282291 + -0.4 Combine like terms: 4.915282291 + -0.4 = 4.515282291 t = 4.515282291 Simplifying t = 4.515282291

Subproblem 2

t + 0.4 = -4.915282291 Simplifying t + 0.4 = -4.915282291 Reorder the terms: 0.4 + t = -4.915282291 Solving 0.4 + t = -4.915282291 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + t = -4.915282291 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + t = -4.915282291 + -0.4 t = -4.915282291 + -0.4 Combine like terms: -4.915282291 + -0.4 = -5.315282291 t = -5.315282291 Simplifying t = -5.315282291

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.515282291, -5.315282291}

See similar equations:

| -18y+18=2-6y | | 17x-4=4(4x+4)-12 | | -8+5y=12 | | x+(1/2x+6)=42 | | x+5+6/x=0 | | -13y-13=5-6y | | -9-10y=-19y+19 | | -3=a-(-4) | | 4m^2+7m+8=0 | | -2(q-6)-(12-8q)= | | .14y+.002(y+2000)=1480 | | 22=y/3-9 | | a^2-3a=70 | | 7[3-4(x-1)]+5[(5x+7)-9]=16x-341 | | 25x^2+3=10x | | -7+6x=-14x+14 | | 2(2x-6)=8-4(x+4) | | 75=4v+11 | | -8p-4p+7+5p-2+6= | | 3/4z=1/2 | | w/8-9w/2=w/16 | | 10-9x=18+18x | | 8y-83=8y+5 | | 71=4v+11 | | 1x+6=-17+x | | 2s^2+20s-4000=0 | | 0-6x=6-3x | | v/2+12=28 | | 11/2=4 | | -1.8z-6.9=5.7 | | x^4+5x^3-14x^2=0 | | 5v-15=35 |

Equations solver categories