h^2+7h-240=0

Simple and best practice solution for h^2+7h-240=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 h^2+7h-240=0 equation:


Simplifying
h2 + 7h + -240 = 0

Reorder the terms:
-240 + 7h + h2 = 0

Solving
-240 + 7h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '240' to each side of the equation.
-240 + 7h + 240 + h2 = 0 + 240

Reorder the terms:
-240 + 240 + 7h + h2 = 0 + 240

Combine like terms: -240 + 240 = 0
0 + 7h + h2 = 0 + 240
7h + h2 = 0 + 240

Combine like terms: 0 + 240 = 240
7h + h2 = 240

The h term is 7h.  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.
7h + 12.25 + h2 = 240 + 12.25

Reorder the terms:
12.25 + 7h + h2 = 240 + 12.25

Combine like terms: 240 + 12.25 = 252.25
12.25 + 7h + h2 = 252.25

Factor a perfect square on the left side:
(h + 3.5)(h + 3.5) = 252.25

Calculate the square root of the right side: 15.882380174

Break this problem into two subproblems by setting 
(h + 3.5) equal to 15.882380174 and -15.882380174.

Subproblem 1

h + 3.5 = 15.882380174 Simplifying h + 3.5 = 15.882380174 Reorder the terms: 3.5 + h = 15.882380174 Solving 3.5 + h = 15.882380174 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + h = 15.882380174 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + h = 15.882380174 + -3.5 h = 15.882380174 + -3.5 Combine like terms: 15.882380174 + -3.5 = 12.382380174 h = 12.382380174 Simplifying h = 12.382380174

Subproblem 2

h + 3.5 = -15.882380174 Simplifying h + 3.5 = -15.882380174 Reorder the terms: 3.5 + h = -15.882380174 Solving 3.5 + h = -15.882380174 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + h = -15.882380174 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + h = -15.882380174 + -3.5 h = -15.882380174 + -3.5 Combine like terms: -15.882380174 + -3.5 = -19.382380174 h = -19.382380174 Simplifying h = -19.382380174

Solution

The solution to the problem is based on the solutions from the subproblems. h = {12.382380174, -19.382380174}

See similar equations:

| 9k^2-3k-2=0 | | x+x-17=23 | | (-14)+5-x-3=x+6+x+3x | | 27=8x+3x | | 24x+14y=1480 | | 4.9*340t^2+t-6.1=0 | | 2n-16=-18 | | 7-4n=5 | | 7x-y=330 | | 6(v+2)=72 | | 5x^4+10x^3-20x^2-40x=0 | | -4+6=16x-3-15x | | 5y-1+y+25=6y+30-2y | | x-14-7x=16 | | v=xqj | | 17=7+2f | | -3(x+9)-6=-33 | | 4y=7x+9 | | 2n+-3n=15 | | x^2+6x+9=2x^2+x-5 | | X+14=-48 | | 4x+9-2x-8=2x+1 | | 2y^2+5y+31=y^2+10y+25 | | 3(x-7)=23-3(x+2) | | 1x=-0.4x+7 | | 6x^5+4x^3+2x-4=0 | | 6=4+2b | | -16t^2+128t+5=0 | | 3(x-4)=2d+c | | 3(x-7)=23-3(x-2) | | 9=x+n | | 12-t=t |

Equations solver categories