(p-4)(p+2)=0

Simple and best practice solution for (p-4)(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 (p-4)(p+2)=0 equation:


Simplifying
(p + -4)(p + 2) = 0

Reorder the terms:
(-4 + p)(p + 2) = 0

Reorder the terms:
(-4 + p)(2 + p) = 0

Multiply (-4 + p) * (2 + p)
(-4(2 + p) + p(2 + p)) = 0
((2 * -4 + p * -4) + p(2 + p)) = 0
((-8 + -4p) + p(2 + p)) = 0
(-8 + -4p + (2 * p + p * p)) = 0
(-8 + -4p + (2p + p2)) = 0

Combine like terms: -4p + 2p = -2p
(-8 + -2p + p2) = 0

Solving
-8 + -2p + p2 = 0

Solving for variable 'p'.

Factor a trinomial.
(-2 + -1p)(4 + -1p) = 0

Subproblem 1

Set the factor '(-2 + -1p)' equal to zero and attempt to solve: Simplifying -2 + -1p = 0 Solving -2 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1p = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1p = 0 + 2 -1p = 0 + 2 Combine like terms: 0 + 2 = 2 -1p = 2 Divide each side by '-1'. p = -2 Simplifying p = -2

Subproblem 2

Set the factor '(4 + -1p)' equal to zero and attempt to solve: Simplifying 4 + -1p = 0 Solving 4 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1p = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1p = 0 + -4 -1p = 0 + -4 Combine like terms: 0 + -4 = -4 -1p = -4 Divide each side by '-1'. p = 4 Simplifying p = 4

Solution

p = {-2, 4}

See similar equations:

| 40-44= | | 6x+2+82=180 | | Y=12.5+5x | | 3x+2=3x+12 | | f(x)=9x^4-45x^3+37x^2+x+2 | | 47/500= | | -4x+y=-83 | | 7x(6x+5)= | | (r+7)(r+8)=0 | | x^2=-20x+19 | | n^2+2n=1200 | | 2(-5x)= | | -7=-1/6(x) | | -82+-78= | | 3(2-x)-5(3x+2)=-13+4 | | 1-(m-6)=3m+14 | | tan(0.5)*15.5= | | 3z/10-3=1 | | -(1/2)y=-4 | | x^2+kx+k^2-7=0 | | tan0.5/15.5 | | y=3*0-5 | | 3(log(2x+2))=x | | 16=8e^3x-1 | | 30x+60=20x+80 | | -logx=1.7 | | 4p+3=6k-5 | | 9+3(z-3)=-5z+1 | | 0.5x+2-0.25x=3 | | x[2]+6x=-30 | | 3p+8=120 | | 10+20x+9x-4=180 |

Equations solver categories