-7p^2+p+2=0

Simple and best practice solution for -7p^2+p+2=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 -7p^2+p+2=0 equation:


Simplifying
-7p2 + p + 2 = 0

Reorder the terms:
2 + p + -7p2 = 0

Solving
2 + p + -7p2 = 0

Solving for variable 'p'.

Begin completing the square.  Divide all terms by
-7 the coefficient of the squared term: 

Divide each side by '-7'.
-0.2857142857 + -0.1428571429p + p2 = 0

Move the constant term to the right:

Add '0.2857142857' to each side of the equation.
-0.2857142857 + -0.1428571429p + 0.2857142857 + p2 = 0 + 0.2857142857

Reorder the terms:
-0.2857142857 + 0.2857142857 + -0.1428571429p + p2 = 0 + 0.2857142857

Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000
0.0000000000 + -0.1428571429p + p2 = 0 + 0.2857142857
-0.1428571429p + p2 = 0 + 0.2857142857

Combine like terms: 0 + 0.2857142857 = 0.2857142857
-0.1428571429p + p2 = 0.2857142857

The p term is p.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-0.1428571429p + 0.25 + p2 = 0.2857142857 + 0.25

Reorder the terms:
0.25 + -0.1428571429p + p2 = 0.2857142857 + 0.25

Combine like terms: 0.2857142857 + 0.25 = 0.5357142857
0.25 + -0.1428571429p + p2 = 0.5357142857

Factor a perfect square on the left side:
(p + 0.5)(p + 0.5) = 0.5357142857

Calculate the square root of the right side: 0.731925055

Break this problem into two subproblems by setting 
(p + 0.5) equal to 0.731925055 and -0.731925055.

Subproblem 1

p + 0.5 = 0.731925055 Simplifying p + 0.5 = 0.731925055 Reorder the terms: 0.5 + p = 0.731925055 Solving 0.5 + p = 0.731925055 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + p = 0.731925055 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + p = 0.731925055 + -0.5 p = 0.731925055 + -0.5 Combine like terms: 0.731925055 + -0.5 = 0.231925055 p = 0.231925055 Simplifying p = 0.231925055

Subproblem 2

p + 0.5 = -0.731925055 Simplifying p + 0.5 = -0.731925055 Reorder the terms: 0.5 + p = -0.731925055 Solving 0.5 + p = -0.731925055 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + p = -0.731925055 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + p = -0.731925055 + -0.5 p = -0.731925055 + -0.5 Combine like terms: -0.731925055 + -0.5 = -1.231925055 p = -1.231925055 Simplifying p = -1.231925055

Solution

The solution to the problem is based on the solutions from the subproblems. p = {0.231925055, -1.231925055}

See similar equations:

| 3x+5y=103 | | X^3-19x^2-7x+8=0 | | W^2-9w+9=0 | | x+(x+2)+(x+4)=49 | | 1/4-(-11/2) | | 9f^2+6f+1=0 | | (5x-4)(5x+8)= | | -3h^2-3h+2=0 | | (A)(B)=2.4 | | 2u^2+3u-6=0 | | 8b^2+8b=0 | | 6/5-1/4 | | 4m^2-3m-9=0 | | 11/5-1/4 | | 0.08X+160=3600 | | y=-2(-2.5)+10(-2.5)-7 | | 5x=(5x-3)+3 | | 12v^9x^9+16v^2x^3y^5=0 | | 0=-4.9*t^2+25*t | | 25+10x=30x | | 8d^2+9d-3=0 | | 92-(6x+15)=6(x+2)+x | | 20x-5=18x+1 | | 3x+2=7x-32 | | 5x-14-2x=7.4 | | -2.25+-.75y+3y=6 | | 7+2w=-3 | | Log(17-2x)=0 | | 3ab=7 | | 2w^2-8w+4=0 | | 6x+26=13x-9 | | 15uv^2x^3-20u^5v^9=0 |

Equations solver categories