p^2-3p-13=-12

Simple and best practice solution for p^2-3p-13=-12 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^2-3p-13=-12 equation:


Simplifying
p2 + -3p + -13 = -12

Reorder the terms:
-13 + -3p + p2 = -12

Solving
-13 + -3p + p2 = -12

Solving for variable 'p'.

Reorder the terms:
-13 + 12 + -3p + p2 = -12 + 12

Combine like terms: -13 + 12 = -1
-1 + -3p + p2 = -12 + 12

Combine like terms: -12 + 12 = 0
-1 + -3p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -3p + 1 + p2 = 0 + 1

Reorder the terms:
-1 + 1 + -3p + p2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3p + p2 = 0 + 1
-3p + p2 = 0 + 1

Combine like terms: 0 + 1 = 1
-3p + p2 = 1

The p term is -3p.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3p + 2.25 + p2 = 1 + 2.25

Reorder the terms:
2.25 + -3p + p2 = 1 + 2.25

Combine like terms: 1 + 2.25 = 3.25
2.25 + -3p + p2 = 3.25

Factor a perfect square on the left side:
(p + -1.5)(p + -1.5) = 3.25

Calculate the square root of the right side: 1.802775638

Break this problem into two subproblems by setting 
(p + -1.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

p + -1.5 = 1.802775638 Simplifying p + -1.5 = 1.802775638 Reorder the terms: -1.5 + p = 1.802775638 Solving -1.5 + p = 1.802775638 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + p = 1.802775638 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + p = 1.802775638 + 1.5 p = 1.802775638 + 1.5 Combine like terms: 1.802775638 + 1.5 = 3.302775638 p = 3.302775638 Simplifying p = 3.302775638

Subproblem 2

p + -1.5 = -1.802775638 Simplifying p + -1.5 = -1.802775638 Reorder the terms: -1.5 + p = -1.802775638 Solving -1.5 + p = -1.802775638 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + p = -1.802775638 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + p = -1.802775638 + 1.5 p = -1.802775638 + 1.5 Combine like terms: -1.802775638 + 1.5 = -0.302775638 p = -0.302775638 Simplifying p = -0.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. p = {3.302775638, -0.302775638}

See similar equations:

| -9p-7=8-10p-6 | | -25x^2+70x-49=0 | | 50=8x+25 | | X(x+23)=6(18) | | 26=4a+6b | | 25=50x+8 | | 8+2t=t | | 1.1X+.35y=.8 | | .0004=x^2 | | X-4+3x=8+11 | | -9f-5=-10f-10 | | 11x+89+12x=5+x | | 3y=6y+12 | | 33x-3.6=x-5.0 | | -6(2x+1)=-12x+6 | | cos(7x)-sen(x)=sen(4x) | | 6n^2-11n-125=-4 | | 5=3x^2-9x-7 | | -4k+7=-8-k | | 4=1x+9 | | X+(x+3)+(x+17)=31 | | x^3-2x^2-48x=0 | | -5x=1.5 | | 8a-8=20+6a | | 6x-6+38=7x-4 | | 484=x^2 | | 9+7m=-7+5m | | 10x^2-19x+2= | | -4+5x=-24 | | 4x-27=3y | | 1.08(1.27)(9-x)=10 | | -2s=-3s+10 |

Equations solver categories