9p^2-7=9p

Simple and best practice solution for 9p^2-7=9p 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 9p^2-7=9p equation:


Simplifying
9p2 + -7 = 9p

Reorder the terms:
-7 + 9p2 = 9p

Solving
-7 + 9p2 = 9p

Solving for variable 'p'.

Reorder the terms:
-7 + -9p + 9p2 = 9p + -9p

Combine like terms: 9p + -9p = 0
-7 + -9p + 9p2 = 0

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

Divide each side by '9'.
-0.7777777778 + -1p + p2 = 0

Move the constant term to the right:

Add '0.7777777778' to each side of the equation.
-0.7777777778 + -1p + 0.7777777778 + p2 = 0 + 0.7777777778

Reorder the terms:
-0.7777777778 + 0.7777777778 + -1p + p2 = 0 + 0.7777777778

Combine like terms: -0.7777777778 + 0.7777777778 = 0.0000000000
0.0000000000 + -1p + p2 = 0 + 0.7777777778
-1p + p2 = 0 + 0.7777777778

Combine like terms: 0 + 0.7777777778 = 0.7777777778
-1p + p2 = 0.7777777778

The p term is -1p.  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.
-1p + 0.25 + p2 = 0.7777777778 + 0.25

Reorder the terms:
0.25 + -1p + p2 = 0.7777777778 + 0.25

Combine like terms: 0.7777777778 + 0.25 = 1.0277777778
0.25 + -1p + p2 = 1.0277777778

Factor a perfect square on the left side:
(p + -0.5)(p + -0.5) = 1.0277777778

Calculate the square root of the right side: 1.013793755

Break this problem into two subproblems by setting 
(p + -0.5) equal to 1.013793755 and -1.013793755.

Subproblem 1

p + -0.5 = 1.013793755 Simplifying p + -0.5 = 1.013793755 Reorder the terms: -0.5 + p = 1.013793755 Solving -0.5 + p = 1.013793755 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 = 1.013793755 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + p = 1.013793755 + 0.5 p = 1.013793755 + 0.5 Combine like terms: 1.013793755 + 0.5 = 1.513793755 p = 1.513793755 Simplifying p = 1.513793755

Subproblem 2

p + -0.5 = -1.013793755 Simplifying p + -0.5 = -1.013793755 Reorder the terms: -0.5 + p = -1.013793755 Solving -0.5 + p = -1.013793755 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 = -1.013793755 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + p = -1.013793755 + 0.5 p = -1.013793755 + 0.5 Combine like terms: -1.013793755 + 0.5 = -0.513793755 p = -0.513793755 Simplifying p = -0.513793755

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.513793755, -0.513793755}

See similar equations:

| 30y+25x=810 | | 7-25=3x-1 | | 5+3.25x=2+3.50x | | 45+u=97 | | (x-5)(x+3)(x-1)=0 | | 4z/9-9=-7 | | 5y=6x-0.5 | | 7x(2x-4)+6=0 | | log(2x)=sin(x) | | y=-1.661ln(x)+41.264 | | 10log(5x)=10 | | 3h/=9 | | y+20=7x+2 | | 5(3-y)=-y | | 6(2x-1)=4+7 | | x+x-v=w+w | | 2x-(6-3x)=4 | | 6-ln(x)=0 | | -x-21=3x+15 | | 8p-7p=70 | | -41=5y-6 | | 203=3x+4 | | 5(3-y)/2=-y | | -2(y-4)-y=-19 | | 25*(32.6+-2y)+50y=815 | | 3(5x-4)=138 | | 8(x-5)2=392 | | 5/3*5/3*7/6 | | 4y+21=26 | | 2700/-1200 | | 2x*x=80 | | 18-xy=7 |

Equations solver categories