13p^2+81p-196=0

Simple and best practice solution for 13p^2+81p-196=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 13p^2+81p-196=0 equation:


Simplifying
13p2 + 81p + -196 = 0

Reorder the terms:
-196 + 81p + 13p2 = 0

Solving
-196 + 81p + 13p2 = 0

Solving for variable 'p'.

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

Divide each side by '13'.
-15.07692308 + 6.230769231p + p2 = 0

Move the constant term to the right:

Add '15.07692308' to each side of the equation.
-15.07692308 + 6.230769231p + 15.07692308 + p2 = 0 + 15.07692308

Reorder the terms:
-15.07692308 + 15.07692308 + 6.230769231p + p2 = 0 + 15.07692308

Combine like terms: -15.07692308 + 15.07692308 = 0.00000000
0.00000000 + 6.230769231p + p2 = 0 + 15.07692308
6.230769231p + p2 = 0 + 15.07692308

Combine like terms: 0 + 15.07692308 = 15.07692308
6.230769231p + p2 = 15.07692308

The p term is 6.230769231p.  Take half its coefficient (3.115384616).
Square it (9.705621306) and add it to both sides.

Add '9.705621306' to each side of the equation.
6.230769231p + 9.705621306 + p2 = 15.07692308 + 9.705621306

Reorder the terms:
9.705621306 + 6.230769231p + p2 = 15.07692308 + 9.705621306

Combine like terms: 15.07692308 + 9.705621306 = 24.782544386
9.705621306 + 6.230769231p + p2 = 24.782544386

Factor a perfect square on the left side:
(p + 3.115384616)(p + 3.115384616) = 24.782544386

Calculate the square root of the right side: 4.978206945

Break this problem into two subproblems by setting 
(p + 3.115384616) equal to 4.978206945 and -4.978206945.

Subproblem 1

p + 3.115384616 = 4.978206945 Simplifying p + 3.115384616 = 4.978206945 Reorder the terms: 3.115384616 + p = 4.978206945 Solving 3.115384616 + p = 4.978206945 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-3.115384616' to each side of the equation. 3.115384616 + -3.115384616 + p = 4.978206945 + -3.115384616 Combine like terms: 3.115384616 + -3.115384616 = 0.000000000 0.000000000 + p = 4.978206945 + -3.115384616 p = 4.978206945 + -3.115384616 Combine like terms: 4.978206945 + -3.115384616 = 1.862822329 p = 1.862822329 Simplifying p = 1.862822329

Subproblem 2

p + 3.115384616 = -4.978206945 Simplifying p + 3.115384616 = -4.978206945 Reorder the terms: 3.115384616 + p = -4.978206945 Solving 3.115384616 + p = -4.978206945 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-3.115384616' to each side of the equation. 3.115384616 + -3.115384616 + p = -4.978206945 + -3.115384616 Combine like terms: 3.115384616 + -3.115384616 = 0.000000000 0.000000000 + p = -4.978206945 + -3.115384616 p = -4.978206945 + -3.115384616 Combine like terms: -4.978206945 + -3.115384616 = -8.093591561 p = -8.093591561 Simplifying p = -8.093591561

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.862822329, -8.093591561}

See similar equations:

| 51=5x+6x-4 | | -5m+3(m-5)=-(2+15) | | 4x^2+10=2x+21 | | 1.2x-.125x^2+32=0 | | -9(6m-3)=6(1+4m) | | -2c+1=-5 | | -5x+8+7x=30 | | 13v-11v+v=18 | | 11+2(3n-14)=1 | | 5(3c+4)=50 | | 8x^2+10=2x+21 | | 7-x=14+x | | 111-(6x+16)=6(x+5)+x | | 3y+4=9x-5 | | X^3+3x^2-1x-3=0 | | 3y-4*0=24 | | 116=7x+2x+8 | | X-23=57 | | 6d-5d-d+4d+2=14 | | 3x+10+4x=10 | | f(x)=10000x | | 4(1/2)=3x-7 | | 1/2(x-5)=3/4(5-3x) | | -4+2x-4x=16 | | -x-10y=6 | | 2-3logx=logx^5 | | a^2-ab-2b^2+a-2b=0 | | 3x+7=12x+25 | | 15n-14n=19 | | 7/2n=49 | | 6x-94+6x-44=90 | | Sen(5x)+sen(2x)=0 |

Equations solver categories