2p^2+33p+42=0

Simple and best practice solution for 2p^2+33p+42=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 2p^2+33p+42=0 equation:


Simplifying
2p2 + 33p + 42 = 0

Reorder the terms:
42 + 33p + 2p2 = 0

Solving
42 + 33p + 2p2 = 0

Solving for variable 'p'.

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

Divide each side by '2'.
21 + 16.5p + p2 = 0

Move the constant term to the right:

Add '-21' to each side of the equation.
21 + 16.5p + -21 + p2 = 0 + -21

Reorder the terms:
21 + -21 + 16.5p + p2 = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 16.5p + p2 = 0 + -21
16.5p + p2 = 0 + -21

Combine like terms: 0 + -21 = -21
16.5p + p2 = -21

The p term is 16.5p.  Take half its coefficient (8.25).
Square it (68.0625) and add it to both sides.

Add '68.0625' to each side of the equation.
16.5p + 68.0625 + p2 = -21 + 68.0625

Reorder the terms:
68.0625 + 16.5p + p2 = -21 + 68.0625

Combine like terms: -21 + 68.0625 = 47.0625
68.0625 + 16.5p + p2 = 47.0625

Factor a perfect square on the left side:
(p + 8.25)(p + 8.25) = 47.0625

Calculate the square root of the right side: 6.860211367

Break this problem into two subproblems by setting 
(p + 8.25) equal to 6.860211367 and -6.860211367.

Subproblem 1

p + 8.25 = 6.860211367 Simplifying p + 8.25 = 6.860211367 Reorder the terms: 8.25 + p = 6.860211367 Solving 8.25 + p = 6.860211367 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-8.25' to each side of the equation. 8.25 + -8.25 + p = 6.860211367 + -8.25 Combine like terms: 8.25 + -8.25 = 0.00 0.00 + p = 6.860211367 + -8.25 p = 6.860211367 + -8.25 Combine like terms: 6.860211367 + -8.25 = -1.389788633 p = -1.389788633 Simplifying p = -1.389788633

Subproblem 2

p + 8.25 = -6.860211367 Simplifying p + 8.25 = -6.860211367 Reorder the terms: 8.25 + p = -6.860211367 Solving 8.25 + p = -6.860211367 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-8.25' to each side of the equation. 8.25 + -8.25 + p = -6.860211367 + -8.25 Combine like terms: 8.25 + -8.25 = 0.00 0.00 + p = -6.860211367 + -8.25 p = -6.860211367 + -8.25 Combine like terms: -6.860211367 + -8.25 = -15.110211367 p = -15.110211367 Simplifying p = -15.110211367

Solution

The solution to the problem is based on the solutions from the subproblems. p = {-1.389788633, -15.110211367}

See similar equations:

| F=1/2jw | | 7r^2-2-5r=0 | | 3(4q-2)=2(3q+7) | | n/80=10/1000 | | 0.9/1.5=3/n | | .25x+.2x=63 | | 105/35=21/n | | 24y+2=-2 | | N/80=10/100 | | -4+9k=14 | | 0=98+56x-8x^2 | | M^2=69 | | 2(p-1)/3 | | 16-12=x/5 | | m/-1-1=4 | | -45+21=-7x+13x | | cos(4x)-cos(7x)=0 | | 9.2y=5+2y | | 9/4t=-8/9 | | Y/10=-30 | | 9/4t=-9/9 | | 0.2=-5z | | z=3x^2y^5 | | 78=15y-2y | | 3x-77=4X-7 | | 2/5f=2/9 | | 9x-81=3x-9 | | 2x^4-9x^2+14=0 | | x+14x=6 | | R^2+8r-56=-8 | | b(5+b)=88 | | 0.3t=-45 |

Equations solver categories