7p+7p^2-18=0

Simple and best practice solution for 7p+7p^2-18=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 7p+7p^2-18=0 equation:


Simplifying
7p + 7p2 + -18 = 0

Reorder the terms:
-18 + 7p + 7p2 = 0

Solving
-18 + 7p + 7p2 = 0

Solving for variable 'p'.

Begin completing the square.  Divide all terms by
7 the coefficient of the squared term: 

Divide each side by '7'.
-2.571428571 + p + p2 = 0

Move the constant term to the right:

Add '2.571428571' to each side of the equation.
-2.571428571 + p + 2.571428571 + p2 = 0 + 2.571428571

Reorder the terms:
-2.571428571 + 2.571428571 + p + p2 = 0 + 2.571428571

Combine like terms: -2.571428571 + 2.571428571 = 0.000000000
0.000000000 + p + p2 = 0 + 2.571428571
p + p2 = 0 + 2.571428571

Combine like terms: 0 + 2.571428571 = 2.571428571
p + p2 = 2.571428571

The p term is p.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + p2 = 2.571428571 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + p2 = 2.571428571 + 0.25

Combine like terms: 2.571428571 + 0.25 = 2.821428571
1.25 + p2 = 2.821428571

Factor a perfect square on the left side:
(p + 0.5)(p + 0.5) = 2.821428571

Calculate the square root of the right side: 1.679710859

Break this problem into two subproblems by setting 
(p + 0.5) equal to 1.679710859 and -1.679710859.

Subproblem 1

p + 0.5 = 1.679710859 Simplifying p + 0.5 = 1.679710859 Reorder the terms: 0.5 + p = 1.679710859 Solving 0.5 + p = 1.679710859 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + p = 1.679710859 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + p = 1.679710859 + -0.5 p = 1.679710859 + -0.5 Combine like terms: 1.679710859 + -0.5 = 1.179710859 p = 1.179710859 Simplifying p = 1.179710859

Subproblem 2

p + 0.5 = -1.679710859 Simplifying p + 0.5 = -1.679710859 Reorder the terms: 0.5 + p = -1.679710859 Solving 0.5 + p = -1.679710859 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + p = -1.679710859 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + p = -1.679710859 + -0.5 p = -1.679710859 + -0.5 Combine like terms: -1.679710859 + -0.5 = -2.179710859 p = -2.179710859 Simplifying p = -2.179710859

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.179710859, -2.179710859}

See similar equations:

| 6+9y=11 | | x^2=-5x-2 | | a=(20-2x)x | | 90=180x^3 | | k^2-5k+4= | | (B-5)(b+1)=0 | | 5(-7)-9(-2)=-19 | | 12a^2-6=-5a | | 9(7x+7)=7(9-11x) | | 90=-3*x^2 | | 3=-3+30 | | 90=-3x*x^2 | | 4.8*3.6= | | 11n^2=3-2n | | (N-6)(n-1)=0 | | x+x+x+x+x+x+x+x+x+x+x+x+x+x=100x | | 2(-7)-9(-2)=4 | | 900=16x^2 | | 0.8=0.04 | | 4x-x^2=12 | | 8x+7x=15x | | 48*36= | | 4x+1+5x=1 | | 34.7*26= | | y=-20+12x | | 73=-6x-7x+8 | | 8(8n+6)+5n=-3(-10n+10) | | m^2+17m+c= | | x^2+5x+c= | | z^2+z+c= | | 2x-5(x-3)=2x-10 | | 2x-1:2=x-3x-4:3 |

Equations solver categories