2p^2+6p-1=0

Simple and best practice solution for 2p^2+6p-1=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+6p-1=0 equation:


Simplifying
2p2 + 6p + -1 = 0

Reorder the terms:
-1 + 6p + 2p2 = 0

Solving
-1 + 6p + 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'.
-0.5 + 3p + p2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 3p + 0.5 + p2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 3p + p2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 3p + p2 = 0 + 0.5
3p + p2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
3p + p2 = 0.5

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 = 0.5 + 2.25

Reorder the terms:
2.25 + 3p + p2 = 0.5 + 2.25

Combine like terms: 0.5 + 2.25 = 2.75
2.25 + 3p + p2 = 2.75

Factor a perfect square on the left side:
(p + 1.5)(p + 1.5) = 2.75

Calculate the square root of the right side: 1.658312395

Break this problem into two subproblems by setting 
(p + 1.5) equal to 1.658312395 and -1.658312395.

Subproblem 1

p + 1.5 = 1.658312395 Simplifying p + 1.5 = 1.658312395 Reorder the terms: 1.5 + p = 1.658312395 Solving 1.5 + p = 1.658312395 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 = 1.658312395 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + p = 1.658312395 + -1.5 p = 1.658312395 + -1.5 Combine like terms: 1.658312395 + -1.5 = 0.158312395 p = 0.158312395 Simplifying p = 0.158312395

Subproblem 2

p + 1.5 = -1.658312395 Simplifying p + 1.5 = -1.658312395 Reorder the terms: 1.5 + p = -1.658312395 Solving 1.5 + p = -1.658312395 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 = -1.658312395 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + p = -1.658312395 + -1.5 p = -1.658312395 + -1.5 Combine like terms: -1.658312395 + -1.5 = -3.158312395 p = -3.158312395 Simplifying p = -3.158312395

Solution

The solution to the problem is based on the solutions from the subproblems. p = {0.158312395, -3.158312395}

See similar equations:

| 5x-7=x+2-8+4x | | 14=-7d | | 8+8b=-3(b+1) | | 4x^3+8x^2-12=0 | | 5*x-7=x+2-8+4*x | | 7x+3(4x-7)=112 | | -3(c-81)=22 | | 0=x^3-2x^2-x-1 | | 15x^2+m-6=0 | | 5x+2(x+13)=96 | | 4x-1*4x-1-16=0 | | -3(c-81)=-22 | | -2=-3+b | | 4x^2+85=17 | | -30x+16x+8=36 | | (-6,2)m=-2 | | 3x-8=14-8x | | 18xy-7xy-10=12 | | 4x+5x+(180-4x+30)=180 | | 4+3x+6+x=32 | | 6x+2(3x-12)=120 | | Z+(12-i)=4+13i | | 6(3x-6)=3x+24 | | 2y-0.5=0.6 | | 6x+2(5x-8)=128 | | 2r^2-11r+15=0 | | 3x+5(2x-18)=-25 | | (5x-9)(2x-7)= | | k=12fx | | 2y+2x=160 | | ln(4x-3)=0 | | 9t^2-10t=9t^2-4 |

Equations solver categories