p^2+2p-75=0

Simple and best practice solution for p^2+2p-75=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 p^2+2p-75=0 equation:


Simplifying
p2 + 2p + -75 = 0

Reorder the terms:
-75 + 2p + p2 = 0

Solving
-75 + 2p + p2 = 0

Solving for variable 'p'.

Begin completing the square.

Move the constant term to the right:

Add '75' to each side of the equation.
-75 + 2p + 75 + p2 = 0 + 75

Reorder the terms:
-75 + 75 + 2p + p2 = 0 + 75

Combine like terms: -75 + 75 = 0
0 + 2p + p2 = 0 + 75
2p + p2 = 0 + 75

Combine like terms: 0 + 75 = 75
2p + p2 = 75

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 = 75 + 1

Reorder the terms:
1 + 2p + p2 = 75 + 1

Combine like terms: 75 + 1 = 76
1 + 2p + p2 = 76

Factor a perfect square on the left side:
(p + 1)(p + 1) = 76

Calculate the square root of the right side: 8.717797887

Break this problem into two subproblems by setting 
(p + 1) equal to 8.717797887 and -8.717797887.

Subproblem 1

p + 1 = 8.717797887 Simplifying p + 1 = 8.717797887 Reorder the terms: 1 + p = 8.717797887 Solving 1 + p = 8.717797887 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 = 8.717797887 + -1 Combine like terms: 1 + -1 = 0 0 + p = 8.717797887 + -1 p = 8.717797887 + -1 Combine like terms: 8.717797887 + -1 = 7.717797887 p = 7.717797887 Simplifying p = 7.717797887

Subproblem 2

p + 1 = -8.717797887 Simplifying p + 1 = -8.717797887 Reorder the terms: 1 + p = -8.717797887 Solving 1 + p = -8.717797887 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 = -8.717797887 + -1 Combine like terms: 1 + -1 = 0 0 + p = -8.717797887 + -1 p = -8.717797887 + -1 Combine like terms: -8.717797887 + -1 = -9.717797887 p = -9.717797887 Simplifying p = -9.717797887

Solution

The solution to the problem is based on the solutions from the subproblems. p = {7.717797887, -9.717797887}

See similar equations:

| 15=-3r | | -181=-10-9v | | -75=9-6m | | -16=y-4 | | 7y-12-5y+9=0 | | (2x+3)(x-5)(5x+4)=0 | | -x^2+3x+1=0 | | 4z+11=3 | | 8y(y+4)=0 | | 4(2+3x)=6-2(3-5x) | | 3n^2+10=85 | | x^3-10x^2+30x-24=0 | | -xy+3x=30 | | ab+bc+vy+z=opq+z | | 3y-7=26 | | a+2b+3=48 | | a^10*b^5=ab+xy+mn+z | | a^1000*b^54608990=234a+xyz+bxy | | 2(x-4)-5=2x+3 | | t=3u+5 | | 12x+9-4x-4=3x-7-x+30 | | p+19=15 | | 2(130+x)=30 | | -3r+9=-1 | | y(7y-1)=0 | | 3x^2+18x=-12 | | 50mg=grams | | x^4-65x^2+16=0 | | 6x+43-39x=89 | | 4m+4m=16 | | 11m=14+2m^2 | | 7x-5x=12 |

Equations solver categories