5p^2+10p-8=-9

Simple and best practice solution for 5p^2+10p-8=-9 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 5p^2+10p-8=-9 equation:


Simplifying
5p2 + 10p + -8 = -9

Reorder the terms:
-8 + 10p + 5p2 = -9

Solving
-8 + 10p + 5p2 = -9

Solving for variable 'p'.

Reorder the terms:
-8 + 9 + 10p + 5p2 = -9 + 9

Combine like terms: -8 + 9 = 1
1 + 10p + 5p2 = -9 + 9

Combine like terms: -9 + 9 = 0
1 + 10p + 5p2 = 0

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

Divide each side by '5'.
0.2 + 2p + p2 = 0

Move the constant term to the right:

Add '-0.2' to each side of the equation.
0.2 + 2p + -0.2 + p2 = 0 + -0.2

Reorder the terms:
0.2 + -0.2 + 2p + p2 = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + 2p + p2 = 0 + -0.2
2p + p2 = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
2p + p2 = -0.2

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 = -0.2 + 1

Reorder the terms:
1 + 2p + p2 = -0.2 + 1

Combine like terms: -0.2 + 1 = 0.8
1 + 2p + p2 = 0.8

Factor a perfect square on the left side:
(p + 1)(p + 1) = 0.8

Calculate the square root of the right side: 0.894427191

Break this problem into two subproblems by setting 
(p + 1) equal to 0.894427191 and -0.894427191.

Subproblem 1

p + 1 = 0.894427191 Simplifying p + 1 = 0.894427191 Reorder the terms: 1 + p = 0.894427191 Solving 1 + p = 0.894427191 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 = 0.894427191 + -1 Combine like terms: 1 + -1 = 0 0 + p = 0.894427191 + -1 p = 0.894427191 + -1 Combine like terms: 0.894427191 + -1 = -0.105572809 p = -0.105572809 Simplifying p = -0.105572809

Subproblem 2

p + 1 = -0.894427191 Simplifying p + 1 = -0.894427191 Reorder the terms: 1 + p = -0.894427191 Solving 1 + p = -0.894427191 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 = -0.894427191 + -1 Combine like terms: 1 + -1 = 0 0 + p = -0.894427191 + -1 p = -0.894427191 + -1 Combine like terms: -0.894427191 + -1 = -1.894427191 p = -1.894427191 Simplifying p = -1.894427191

Solution

The solution to the problem is based on the solutions from the subproblems. p = {-0.105572809, -1.894427191}

See similar equations:

| 2+7x+8x+88=180 | | -11y-y^2=0 | | 10+10+10+10+10+10+10+10+10+10+x=196 | | n(-14-n)=0 | | 2+7x+8x+88+180= | | 2+7x+8x+88+18= | | n(11+n)=0 | | -8x+x^2=0 | | m-(-34)=-98 | | 4x^2-8=136 | | 25x^2-49x^2y^2+16y^2=0 | | y+23=59 | | 15+n^2=0 | | 16+n^2=0 | | 10x^2-6x^2=4x^2 | | X^3-5x^2-57x-189=15 | | 2+7x=46 | | 2x/5=5x/6=-13 | | -8x+(-24)=16 | | X^3-5x^2-57x-99=15 | | 4(6+5v)=38+6v | | -4x+(-24)=12 | | 10x-4=7x+2 | | 10-4y-Y=10-5y | | 38.94+0.5x=110 | | 3(x-9)=4x-9 | | 5x+18-7=x-1 | | x/30=11/15 | | (6/7xy^7)(1/5x^2y^2) | | x+y=193.2 | | 0.75x*2.35y= | | y+8x=0 |

Equations solver categories