(4-z)(5z+8)=0

Simple and best practice solution for (4-z)(5z+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 (4-z)(5z+8)=0 equation:


Simplifying
(4 + -1z)(5z + 8) = 0

Reorder the terms:
(4 + -1z)(8 + 5z) = 0

Multiply (4 + -1z) * (8 + 5z)
(4(8 + 5z) + -1z * (8 + 5z)) = 0
((8 * 4 + 5z * 4) + -1z * (8 + 5z)) = 0
((32 + 20z) + -1z * (8 + 5z)) = 0
(32 + 20z + (8 * -1z + 5z * -1z)) = 0
(32 + 20z + (-8z + -5z2)) = 0

Combine like terms: 20z + -8z = 12z
(32 + 12z + -5z2) = 0

Solving
32 + 12z + -5z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(4 + -1z)(8 + 5z) = 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 + 5z)' equal to zero and attempt to solve: Simplifying 8 + 5z = 0 Solving 8 + 5z = 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 + 5z = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 5z = 0 + -8 5z = 0 + -8 Combine like terms: 0 + -8 = -8 5z = -8 Divide each side by '5'. z = -1.6 Simplifying z = -1.6

Solution

z = {4, -1.6}

See similar equations:

| x+(5-x)=3(x+1)+x | | X+5=-8x+32 | | 15x+4=18x+35 | | -6x-6(x+5y)= | | 6x-20+2x+38=114 | | 15x+4=18x+5 | | 7=k-4 | | 9c=32f-160 | | 2.4x+53.1=10.7-8.2x | | b+6=-12 | | 4x^2-12x=40 | | 7x-4=-4x+10 | | d/7=13 | | -6*6*6= | | 100-x=73 | | (5m^2)(-3m^2n+8)= | | 6x^2-25x-150=0 | | 100-2x=65 | | 6x-20=2x+28 | | -36*36*36= | | M^2-14m=-33 | | -2n+5n=21 | | 27t^2-195t+350=0 | | P/14-5=-4 | | 7(x-4)=5(x+6) | | v=3/8sq12 | | 5s-31=74 | | f(-8)=2x+3y | | 10h-15=85 | | 2+3+6+7+5+a+3=25 | | 2(x+2)-3(2x-10)=6x-9 | | =2r^2-10r+14 |

Equations solver categories