-2p^2-21p-40=0

Simple and best practice solution for -2p^2-21p-40=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^2-21p-40=0 equation:


Simplifying
-2p2 + -21p + -40 = 0

Reorder the terms:
-40 + -21p + -2p2 = 0

Solving
-40 + -21p + -2p2 = 0

Solving for variable 'p'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(40 + 21p + 2p2) = 0

Factor a trinomial.
-1((8 + p)(5 + 2p)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(8 + p)' equal to zero and attempt to solve: Simplifying 8 + p = 0 Solving 8 + p = 0 Move all terms containing p to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + p = 0 + -8 Combine like terms: 8 + -8 = 0 0 + p = 0 + -8 p = 0 + -8 Combine like terms: 0 + -8 = -8 p = -8 Simplifying p = -8

Subproblem 2

Set the factor '(5 + 2p)' equal to zero and attempt to solve: Simplifying 5 + 2p = 0 Solving 5 + 2p = 0 Move all terms containing p to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 2p = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2p = 0 + -5 2p = 0 + -5 Combine like terms: 0 + -5 = -5 2p = -5 Divide each side by '2'. p = -2.5 Simplifying p = -2.5

Solution

p = {-8, -2.5}

See similar equations:

| -8x^2+2x+3=0 | | 4+-1=5(t+4) | | -4+5x=30 | | Y=mx+dx | | M^2-7m-18=0 | | -8x^2-x+9= | | 31-19=4(x-7) | | 52+4y-23=16y-11-4y | | 6(0)-8y=24 | | X-y=-14 | | -11x-20=-10x+45 | | (4x+5)(x-6)=0 | | 8x^2-59x= | | 150x^4+35x^3-75x^2= | | 2x^2(x^3-x^2+8x-5)= | | 20x^2-4x-16=0 | | -8x^2-59x= | | .4x-1.8=-3.7 | | -.8r-3.1=-8.3 | | (3x+1)(2x^2+7x+2)= | | -3x^2-30x=0 | | (3m^2-1)(-6m^3)= | | -.333m-7=5 | | y=-3(-4)+1 | | (4x^2-7x)(-x)= | | -7z+6z=-5z-7+2z | | log[3](81)=x | | 8m+9=7m+6 | | 6x(2x^2-5x+1)= | | -0.9+9.79=-0.7x+8.39 | | r^2+8r+33= | | (4n+8)(4n-8)= |

Equations solver categories