4p^2-8p-1=0

Simple and best practice solution for 4p^2-8p-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 4p^2-8p-1=0 equation:


Simplifying
4p2 + -8p + -1 = 0

Reorder the terms:
-1 + -8p + 4p2 = 0

Solving
-1 + -8p + 4p2 = 0

Solving for variable 'p'.

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

Divide each side by '4'.
-0.25 + -2p + p2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + -2p + 0.25 + p2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + -2p + p2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + -2p + p2 = 0 + 0.25
-2p + p2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
-2p + p2 = 0.25

The p term is -2p.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2p + 1 + p2 = 0.25 + 1

Reorder the terms:
1 + -2p + p2 = 0.25 + 1

Combine like terms: 0.25 + 1 = 1.25
1 + -2p + p2 = 1.25

Factor a perfect square on the left side:
(p + -1)(p + -1) = 1.25

Calculate the square root of the right side: 1.118033989

Break this problem into two subproblems by setting 
(p + -1) equal to 1.118033989 and -1.118033989.

Subproblem 1

p + -1 = 1.118033989 Simplifying p + -1 = 1.118033989 Reorder the terms: -1 + p = 1.118033989 Solving -1 + p = 1.118033989 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + p = 1.118033989 + 1 Combine like terms: -1 + 1 = 0 0 + p = 1.118033989 + 1 p = 1.118033989 + 1 Combine like terms: 1.118033989 + 1 = 2.118033989 p = 2.118033989 Simplifying p = 2.118033989

Subproblem 2

p + -1 = -1.118033989 Simplifying p + -1 = -1.118033989 Reorder the terms: -1 + p = -1.118033989 Solving -1 + p = -1.118033989 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + p = -1.118033989 + 1 Combine like terms: -1 + 1 = 0 0 + p = -1.118033989 + 1 p = -1.118033989 + 1 Combine like terms: -1.118033989 + 1 = -0.118033989 p = -0.118033989 Simplifying p = -0.118033989

Solution

The solution to the problem is based on the solutions from the subproblems. p = {2.118033989, -0.118033989}

See similar equations:

| 7x-5x=-9+5 | | 7y=24y-17 | | 4x-5y+3-2x+7y= | | -2(2+3x)=-76 | | (-10)3= | | 6(3+5x)=258 | | 3a+10+2a+3a-10+90=270 | | 3c-17=c+1 | | -8(-8+x)= | | 3(1+6x)=183 | | (-6+3x)/5/(4x-8)/25 | | 25x^(1/3)*9x^(1/3) | | 4x+2xy-7x-6xy= | | (x2/5)4 | | (w+3)(w+7)=0 | | 5(2-7x)=80 | | 9x-4x+132=9x+56 | | 3+(-16)-10-(19)= | | 81/d=3 | | 38.17=Cx+0.50 | | 8z+5=3z-9 | | (x^3/2/x^3/4)^1/3 | | A+10/a-2-5a+38/a^2-4 | | 150=18+y | | C=38.17+0.50x | | 8(-2)-3+9= | | 2.43x+13.71=8.12x-22.59 | | s^2+4s-32=0 | | C=38.17x+0.50 | | 9x+10x-9=14 | | 12=1.5xp | | w/6-3w/4+4/3=w+7/3 |

Equations solver categories