p(p+4)=18

Simple and best practice solution for p(p+4)=18 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(p+4)=18 equation:


Simplifying
p(p + 4) = 18

Reorder the terms:
p(4 + p) = 18
(4 * p + p * p) = 18
(4p + p2) = 18

Solving
4p + p2 = 18

Solving for variable 'p'.

Reorder the terms:
-18 + 4p + p2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 4p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '18' to each side of the equation.
-18 + 4p + 18 + p2 = 0 + 18

Reorder the terms:
-18 + 18 + 4p + p2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 4p + p2 = 0 + 18
4p + p2 = 0 + 18

Combine like terms: 0 + 18 = 18
4p + p2 = 18

The p term is 4p.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4p + 4 + p2 = 18 + 4

Reorder the terms:
4 + 4p + p2 = 18 + 4

Combine like terms: 18 + 4 = 22
4 + 4p + p2 = 22

Factor a perfect square on the left side:
(p + 2)(p + 2) = 22

Calculate the square root of the right side: 4.69041576

Break this problem into two subproblems by setting 
(p + 2) equal to 4.69041576 and -4.69041576.

Subproblem 1

p + 2 = 4.69041576 Simplifying p + 2 = 4.69041576 Reorder the terms: 2 + p = 4.69041576 Solving 2 + p = 4.69041576 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + p = 4.69041576 + -2 Combine like terms: 2 + -2 = 0 0 + p = 4.69041576 + -2 p = 4.69041576 + -2 Combine like terms: 4.69041576 + -2 = 2.69041576 p = 2.69041576 Simplifying p = 2.69041576

Subproblem 2

p + 2 = -4.69041576 Simplifying p + 2 = -4.69041576 Reorder the terms: 2 + p = -4.69041576 Solving 2 + p = -4.69041576 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + p = -4.69041576 + -2 Combine like terms: 2 + -2 = 0 0 + p = -4.69041576 + -2 p = -4.69041576 + -2 Combine like terms: -4.69041576 + -2 = -6.69041576 p = -6.69041576 Simplifying p = -6.69041576

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.69041576, -6.69041576}

See similar equations:

| 14x-4.5x^2+0.25x^3+10=10 | | 2n-2(4n+5)=-6(n-3)8 | | 14-3(x+3)=5-2(x+1) | | 5/9x=-51 | | -2n-3(-8n+7)=109 | | -24=3x+5x | | 5y-1+4x-2+6x= | | 14x-4.5x^2+0.25x^3=0 | | -2n-3(-8n+7)=189 | | 4=6+1.8w | | f(-8)=-6(-8)-3 | | (x-2)2-9=0 | | 2(3x-4)8=6 | | 6-(6+4b)=12(b+8) | | 10B-5=25 | | 3(6r+4)=120 | | 16-81t^2=0 | | -11=1+7x-x | | 5n-2n+6=30-4n | | 1-2+5=4-3 | | g=-16-9 | | -(1-x)=7x+2 | | 2x+3(x+1)=8x+4 | | 5x+1x=20.25 | | 8x+2x-7=33 | | 18-69=4a(a+3) | | -6+5r=2r-4+2r | | 33(x-2)=p | | y-0.4=2y | | -11=1+2x-6x | | x+x+32=x+50 | | (11x-2)+(6x+2)+61=180 |

Equations solver categories