p^2-16p+56=0

Simple and best practice solution for p^2-16p+56=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 p^2-16p+56=0 equation:


Simplifying
p2 + -16p + 56 = 0

Reorder the terms:
56 + -16p + p2 = 0

Solving
56 + -16p + p2 = 0

Solving for variable 'p'.

Begin completing the square.

Move the constant term to the right:

Add '-56' to each side of the equation.
56 + -16p + -56 + p2 = 0 + -56

Reorder the terms:
56 + -56 + -16p + p2 = 0 + -56

Combine like terms: 56 + -56 = 0
0 + -16p + p2 = 0 + -56
-16p + p2 = 0 + -56

Combine like terms: 0 + -56 = -56
-16p + p2 = -56

The p term is -16p.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16p + 64 + p2 = -56 + 64

Reorder the terms:
64 + -16p + p2 = -56 + 64

Combine like terms: -56 + 64 = 8
64 + -16p + p2 = 8

Factor a perfect square on the left side:
(p + -8)(p + -8) = 8

Calculate the square root of the right side: 2.828427125

Break this problem into two subproblems by setting 
(p + -8) equal to 2.828427125 and -2.828427125.

Subproblem 1

p + -8 = 2.828427125 Simplifying p + -8 = 2.828427125 Reorder the terms: -8 + p = 2.828427125 Solving -8 + p = 2.828427125 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + p = 2.828427125 + 8 Combine like terms: -8 + 8 = 0 0 + p = 2.828427125 + 8 p = 2.828427125 + 8 Combine like terms: 2.828427125 + 8 = 10.828427125 p = 10.828427125 Simplifying p = 10.828427125

Subproblem 2

p + -8 = -2.828427125 Simplifying p + -8 = -2.828427125 Reorder the terms: -8 + p = -2.828427125 Solving -8 + p = -2.828427125 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + p = -2.828427125 + 8 Combine like terms: -8 + 8 = 0 0 + p = -2.828427125 + 8 p = -2.828427125 + 8 Combine like terms: -2.828427125 + 8 = 5.171572875 p = 5.171572875 Simplifying p = 5.171572875

Solution

The solution to the problem is based on the solutions from the subproblems. p = {10.828427125, 5.171572875}

See similar equations:

| (8i)(-8i)= | | 7x=8x+0.50 | | (x-4)(x+14)=44 | | 4(1.8+6.2)=4*1.8+4*6.2 | | 3(2x+3)=10x+5-4x+4 | | 8(1/4x-1/8y) | | 1/4=-x/5 | | ((2x-5)/12))-((3-x)/6))=(11/12) | | 1/8(4) | | ((2x-5)/12))-3 | | 1/5(10w-15)=1/4(12w-8) | | y-5=1/8(x-(4)) | | 5x-4.5=5x+6 | | (xy+2x+y+2)dx+(x^2+2x+3)dy=0 | | -cos^2x/cosx | | 8x^2+38x-16=3x^2 | | 3-5/4(2z-6)=5z-2/3 | | 18x^4-29x^2+3=0 | | 7(x)+100(x)=640 | | 2.9x+49.3=6.1-7.9x | | (11+15+7+x)4=12 | | 15a+4a*5= | | a/24=10/24 | | 1.10c+2.35s=294.20 | | 5g^8h^6/15g^8h^4 | | 2B+A=168 | | 4(x−8)^3/4=32 | | 7[4-5(a-5)]=7(5-4a) | | 3y=56-4y | | 7a-2t=y+4 | | z^2+7z=-42.50 | | (16c^4d^3/11c)x(d^2/4c^4d^3) |

Equations solver categories