(z+4)(z-8)=0

Simple and best practice solution for (z+4)(z-8)=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 (z+4)(z-8)=0 equation:


Simplifying
(z + 4)(z + -8) = 0

Reorder the terms:
(4 + z)(z + -8) = 0

Reorder the terms:
(4 + z)(-8 + z) = 0

Multiply (4 + z) * (-8 + z)
(4(-8 + z) + z(-8 + z)) = 0
((-8 * 4 + z * 4) + z(-8 + z)) = 0
((-32 + 4z) + z(-8 + z)) = 0
(-32 + 4z + (-8 * z + z * z)) = 0
(-32 + 4z + (-8z + z2)) = 0

Combine like terms: 4z + -8z = -4z
(-32 + -4z + z2) = 0

Solving
-32 + -4z + z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-4 + -1z)(8 + -1z) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -1z)' equal to zero and attempt to solve: Simplifying 8 + -1z = 0 Solving 8 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1z = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1z = 0 + -8 -1z = 0 + -8 Combine like terms: 0 + -8 = -8 -1z = -8 Divide each side by '-1'. z = 8 Simplifying z = 8

Solution

z = {-4, 8}

See similar equations:

| t=-2s-1 | | 4x-15=49 | | 0=t^2+5t+36 | | -7x+2(2x-8)=2 | | 7x-8y+5x+8y-x= | | x^4+10x^2=6x^3 | | -7(6-4x)-x=-13-2x | | (36)+8y+4+(36)=4y+8 | | Xy+x-xy-x+y= | | 3z=12-18 | | 2+6(2-8m)=-27-7m | | 18x-18-x+2x+2= | | -1/25= | | 16w+120=16+20 | | 3x-2y-5x+2y+2= | | x^2=-4+21 | | 10-6x=(7x+7) | | (4x-2)+5x+1+(4x-2)=2x+14 | | x/35=11 | | X+3(x-2)=5 | | 2y+7+y=-4+y | | 13-2x=8(1+8x)+5 | | 42-26+18*12=28 | | 7(k-4)+10=3k+20+4k-2 | | 45*16-14= | | 2xy-3x+4xy+8x= | | -24-3a=3a+6(4+3a) | | 16x-1+7x=4x-3 | | 18c+5-16c=39 | | 42-26+18*12= | | 7x+(16x-1)+7x=4x+3 | | 5x^2+12=257 |

Equations solver categories