p^2+12p-40=0

Simple and best practice solution for p^2+12p-40=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 p^2+12p-40=0 equation:


Simplifying
p2 + 12p + -40 = 0

Reorder the terms:
-40 + 12p + p2 = 0

Solving
-40 + 12p + p2 = 0

Solving for variable 'p'.

Begin completing the square.

Move the constant term to the right:

Add '40' to each side of the equation.
-40 + 12p + 40 + p2 = 0 + 40

Reorder the terms:
-40 + 40 + 12p + p2 = 0 + 40

Combine like terms: -40 + 40 = 0
0 + 12p + p2 = 0 + 40
12p + p2 = 0 + 40

Combine like terms: 0 + 40 = 40
12p + p2 = 40

The p term is 12p.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12p + 36 + p2 = 40 + 36

Reorder the terms:
36 + 12p + p2 = 40 + 36

Combine like terms: 40 + 36 = 76
36 + 12p + p2 = 76

Factor a perfect square on the left side:
(p + 6)(p + 6) = 76

Calculate the square root of the right side: 8.717797887

Break this problem into two subproblems by setting 
(p + 6) equal to 8.717797887 and -8.717797887.

Subproblem 1

p + 6 = 8.717797887 Simplifying p + 6 = 8.717797887 Reorder the terms: 6 + p = 8.717797887 Solving 6 + p = 8.717797887 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + p = 8.717797887 + -6 Combine like terms: 6 + -6 = 0 0 + p = 8.717797887 + -6 p = 8.717797887 + -6 Combine like terms: 8.717797887 + -6 = 2.717797887 p = 2.717797887 Simplifying p = 2.717797887

Subproblem 2

p + 6 = -8.717797887 Simplifying p + 6 = -8.717797887 Reorder the terms: 6 + p = -8.717797887 Solving 6 + p = -8.717797887 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + p = -8.717797887 + -6 Combine like terms: 6 + -6 = 0 0 + p = -8.717797887 + -6 p = -8.717797887 + -6 Combine like terms: -8.717797887 + -6 = -14.717797887 p = -14.717797887 Simplifying p = -14.717797887

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.717797887, -14.717797887}

See similar equations:

| (h-4)(h+2)=0 | | x=(450x2x)/100 | | 2x^2+9x+15=0 | | 5y-4x+2y= | | 4m-17=31-2m | | Y=120-15x | | (7k+6)(k+6)=0 | | 5x+9=3x+35 | | 9+f-2=f | | 5x-2+3x+10=16 | | 31.25/12.5 | | 2(x-3.1)=1.2 | | 3x-2+8=9-2x+2 | | 2x+3x+x=35+1 | | 4y+4=3y-8 | | (6b-4)(3b+6)= | | 10x-9=6+5x | | 25x^3y^2-15x^2y^2+5x^2y= | | 4y+15=11y+41 | | Y=2-17+6 | | 13*x=60 | | ln2x=13/2 | | 25x^3y^2-15x^2y^2+5c^2y= | | 327*5+95*5+562*5= | | 7y+6=4-10y | | 13*x= | | 58-4k=6k+8 | | -5(r-9)+2(r+3)=-2(r-4)+48 | | (4x+6)(8x+2)= | | Z=-3w+1 | | 17y-8y=18 | | (14/3)x(1/6) |

Equations solver categories