-p^2+11p=-1

Simple and best practice solution for -p^2+11p=-1 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+11p=-1 equation:


Simplifying
-1p2 + 11p = -1

Reorder the terms:
11p + -1p2 = -1

Solving
11p + -1p2 = -1

Solving for variable 'p'.

Reorder the terms:
1 + 11p + -1p2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + 11p + -1p2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-1 + -11p + p2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -11p + 1 + p2 = 0 + 1

Reorder the terms:
-1 + 1 + -11p + p2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -11p + p2 = 0 + 1
-11p + p2 = 0 + 1

Combine like terms: 0 + 1 = 1
-11p + p2 = 1

The p term is -11p.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11p + 30.25 + p2 = 1 + 30.25

Reorder the terms:
30.25 + -11p + p2 = 1 + 30.25

Combine like terms: 1 + 30.25 = 31.25
30.25 + -11p + p2 = 31.25

Factor a perfect square on the left side:
(p + -5.5)(p + -5.5) = 31.25

Calculate the square root of the right side: 5.590169944

Break this problem into two subproblems by setting 
(p + -5.5) equal to 5.590169944 and -5.590169944.

Subproblem 1

p + -5.5 = 5.590169944 Simplifying p + -5.5 = 5.590169944 Reorder the terms: -5.5 + p = 5.590169944 Solving -5.5 + p = 5.590169944 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + p = 5.590169944 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + p = 5.590169944 + 5.5 p = 5.590169944 + 5.5 Combine like terms: 5.590169944 + 5.5 = 11.090169944 p = 11.090169944 Simplifying p = 11.090169944

Subproblem 2

p + -5.5 = -5.590169944 Simplifying p + -5.5 = -5.590169944 Reorder the terms: -5.5 + p = -5.590169944 Solving -5.5 + p = -5.590169944 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + p = -5.590169944 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + p = -5.590169944 + 5.5 p = -5.590169944 + 5.5 Combine like terms: -5.590169944 + 5.5 = -0.090169944 p = -0.090169944 Simplifying p = -0.090169944

Solution

The solution to the problem is based on the solutions from the subproblems. p = {11.090169944, -0.090169944}

See similar equations:

| 2u+12=27 | | -3cosx+3=2sin^2x | | -11=3y+7 | | a=1/2×13×7 | | x=5/8 | | 7x-12-2x=-5(-x+8) | | 15m+10=50 | | 43=2v+13 | | (2x+1)(x-5)=(2x-1)-(x-1) | | 6p+4=0 | | 7x-12-2x=-5-x+8 | | 0.5x+0.2y=3 | | 3p-4=0 | | -6w^2=36w | | 9m+15-3m+7= | | 4(3x+6)=3x-6 | | 19=4u-17 | | 2.8x-27=1.4x+8 | | (6(5-2.5x))= | | 5x^5-3x^3=0 | | 16-3p=.666666667p+5 | | m/3-3=-9 | | 7.5x+2.3=-5.2 | | 3i/3-2i | | 37-8p=65+7p | | 2x^3+x^2-4x+8=0 | | 2u+9=39 | | 4n^2+28n-30=0 | | 9x+6=3x-6 | | -2(5x-4)=38 | | 2x^2+1x+390=0 | | 12+3x=69 |

Equations solver categories