0=-5t^2+20t+15

Simple and best practice solution for 0=-5t^2+20t+15 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 0=-5t^2+20t+15 equation:


Simplifying
0 = -5t2 + 20t + 15

Reorder the terms:
0 = 15 + 20t + -5t2

Solving
0 = 15 + 20t + -5t2

Solving for variable 't'.

Combine like terms: 0 + -15 = -15
-15 + -20t + 5t2 = 15 + 20t + -5t2 + -15 + -20t + 5t2

Reorder the terms:
-15 + -20t + 5t2 = 15 + -15 + 20t + -20t + -5t2 + 5t2

Combine like terms: 15 + -15 = 0
-15 + -20t + 5t2 = 0 + 20t + -20t + -5t2 + 5t2
-15 + -20t + 5t2 = 20t + -20t + -5t2 + 5t2

Combine like terms: 20t + -20t = 0
-15 + -20t + 5t2 = 0 + -5t2 + 5t2
-15 + -20t + 5t2 = -5t2 + 5t2

Combine like terms: -5t2 + 5t2 = 0
-15 + -20t + 5t2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-3 + -4t + t2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-3 + -4t + t2)' equal to zero and attempt to solve: Simplifying -3 + -4t + t2 = 0 Solving -3 + -4t + t2 = 0 Begin completing the square. Move the constant term to the right: Add '3' to each side of the equation. -3 + -4t + 3 + t2 = 0 + 3 Reorder the terms: -3 + 3 + -4t + t2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4t + t2 = 0 + 3 -4t + t2 = 0 + 3 Combine like terms: 0 + 3 = 3 -4t + t2 = 3 The t term is -4t. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4t + 4 + t2 = 3 + 4 Reorder the terms: 4 + -4t + t2 = 3 + 4 Combine like terms: 3 + 4 = 7 4 + -4t + t2 = 7 Factor a perfect square on the left side: (t + -2)(t + -2) = 7 Calculate the square root of the right side: 2.645751311 Break this problem into two subproblems by setting (t + -2) equal to 2.645751311 and -2.645751311.

Subproblem 1

t + -2 = 2.645751311 Simplifying t + -2 = 2.645751311 Reorder the terms: -2 + t = 2.645751311 Solving -2 + t = 2.645751311 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + t = 2.645751311 + 2 Combine like terms: -2 + 2 = 0 0 + t = 2.645751311 + 2 t = 2.645751311 + 2 Combine like terms: 2.645751311 + 2 = 4.645751311 t = 4.645751311 Simplifying t = 4.645751311

Subproblem 2

t + -2 = -2.645751311 Simplifying t + -2 = -2.645751311 Reorder the terms: -2 + t = -2.645751311 Solving -2 + t = -2.645751311 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + t = -2.645751311 + 2 Combine like terms: -2 + 2 = 0 0 + t = -2.645751311 + 2 t = -2.645751311 + 2 Combine like terms: -2.645751311 + 2 = -0.645751311 t = -0.645751311 Simplifying t = -0.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.645751311, -0.645751311}

Solution

t = {4.645751311, -0.645751311}

See similar equations:

| 3(2x+4)=2(x+2+78) | | (-8.6)(0.07)= | | Y=-8+3x^2 | | y=35+.2x | | .12c+2(.75)=5 | | 5(-2)+7= | | 1+2x=1x+5 | | 2x^2-45x-450=0 | | 4(x-2)+7x=14 | | 3(2x+4)=2(x+2)+78 | | 5u+14=74 | | 4(x-1)+2=2(x+2) | | h(x)=3.25*-3 | | Sind=.65 | | 12x-98=-290 | | 4y+15=71 | | 3+2(5-4x)+9x= | | 9a=fa+4m*4m | | 4(x-1)+2x=(x+2) | | 78=5y+3 | | 2A^2-2A-10=0 | | 5(3x-2)-5=5(x-2)+65 | | 9a=fa+4m^2 | | A-3b+2c=13 | | 4j-9j+3=-31 | | 36x^2+33x-18=0 | | 2z+x+y=8 | | 3(2-6m)=-15m-3 | | -38=43+9x | | a^2+8a+48= | | 0.3x-0.1y=2 | | 9x^3-13x^2+10x+25=0 |

Equations solver categories