p^2-22p=-45

Simple and best practice solution for p^2-22p=-45 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^2-22p=-45 equation:


Simplifying
p2 + -22p = -45

Reorder the terms:
-22p + p2 = -45

Solving
-22p + p2 = -45

Solving for variable 'p'.

Reorder the terms:
45 + -22p + p2 = -45 + 45

Combine like terms: -45 + 45 = 0
45 + -22p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -22p + -45 + p2 = 0 + -45

Reorder the terms:
45 + -45 + -22p + p2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -22p + p2 = 0 + -45
-22p + p2 = 0 + -45

Combine like terms: 0 + -45 = -45
-22p + p2 = -45

The p term is -22p.  Take half its coefficient (-11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
-22p + 121 + p2 = -45 + 121

Reorder the terms:
121 + -22p + p2 = -45 + 121

Combine like terms: -45 + 121 = 76
121 + -22p + p2 = 76

Factor a perfect square on the left side:
(p + -11)(p + -11) = 76

Calculate the square root of the right side: 8.717797887

Break this problem into two subproblems by setting 
(p + -11) equal to 8.717797887 and -8.717797887.

Subproblem 1

p + -11 = 8.717797887 Simplifying p + -11 = 8.717797887 Reorder the terms: -11 + p = 8.717797887 Solving -11 + p = 8.717797887 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + p = 8.717797887 + 11 Combine like terms: -11 + 11 = 0 0 + p = 8.717797887 + 11 p = 8.717797887 + 11 Combine like terms: 8.717797887 + 11 = 19.717797887 p = 19.717797887 Simplifying p = 19.717797887

Subproblem 2

p + -11 = -8.717797887 Simplifying p + -11 = -8.717797887 Reorder the terms: -11 + p = -8.717797887 Solving -11 + p = -8.717797887 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + p = -8.717797887 + 11 Combine like terms: -11 + 11 = 0 0 + p = -8.717797887 + 11 p = -8.717797887 + 11 Combine like terms: -8.717797887 + 11 = 2.282202113 p = 2.282202113 Simplifying p = 2.282202113

Solution

The solution to the problem is based on the solutions from the subproblems. p = {19.717797887, 2.282202113}

See similar equations:

| -5x+48=-27 | | -8-1/3n-25 | | -8-1/3n_-25 | | 1.55=-3x-0.62 | | -6y=144 | | 15-6y=33 | | x+3+4(x-1)=x-2 | | 9=5v | | -8(m+1)+5(3m-2)= | | 5x=8x-6y | | 93z-82=100k+50 | | 5z-20=z+4 | | x^7+7x-5=0 | | 6x-40=x-5 | | S=106.25-0.25w | | 34=x+5x+4 | | (X-15)15=90 | | 35=.5(4+3) | | 7x+3x+5x=0 | | 5s+3(11.4)=29.50 | | N+n+5=33 | | 3h-8=2(h-4) | | 5+2(2x+1)=-9 | | (35+x)20=90 | | 0.2x+1.2=0.9x-3.0 | | (6x-16)=(2x+4) | | -4+g=1 | | 3s+0.75w=318.75 | | -4/7x=8/9 | | 23(x+30)=90 | | (2x)50=90 | | 4x+7=12x-10 |

Equations solver categories