(x-5)(x+4i)(x-4i)=0

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


Simplifying
(x + -5)(x + 4i)(x + -4i) = 0

Reorder the terms:
(-5 + x)(x + 4i)(x + -4i) = 0

Reorder the terms:
(-5 + x)(4i + x)(x + -4i) = 0

Reorder the terms:
(-5 + x)(4i + x)(-4i + x) = 0

Multiply (-5 + x) * (4i + x)
(-5(4i + x) + x(4i + x))(-4i + x) = 0
((4i * -5 + x * -5) + x(4i + x))(-4i + x) = 0
((-20i + -5x) + x(4i + x))(-4i + x) = 0
(-20i + -5x + (4i * x + x * x))(-4i + x) = 0
(-20i + -5x + (4ix + x2))(-4i + x) = 0

Reorder the terms:
(-20i + 4ix + -5x + x2)(-4i + x) = 0
(-20i + 4ix + -5x + x2)(-4i + x) = 0

Multiply (-20i + 4ix + -5x + x2) * (-4i + x)
(-20i * (-4i + x) + 4ix * (-4i + x) + -5x * (-4i + x) + x2(-4i + x)) = 0
((-4i * -20i + x * -20i) + 4ix * (-4i + x) + -5x * (-4i + x) + x2(-4i + x)) = 0

Reorder the terms:
((-20ix + 80i2) + 4ix * (-4i + x) + -5x * (-4i + x) + x2(-4i + x)) = 0
((-20ix + 80i2) + 4ix * (-4i + x) + -5x * (-4i + x) + x2(-4i + x)) = 0
(-20ix + 80i2 + (-4i * 4ix + x * 4ix) + -5x * (-4i + x) + x2(-4i + x)) = 0

Reorder the terms:
(-20ix + 80i2 + (4ix2 + -16i2x) + -5x * (-4i + x) + x2(-4i + x)) = 0
(-20ix + 80i2 + (4ix2 + -16i2x) + -5x * (-4i + x) + x2(-4i + x)) = 0
(-20ix + 80i2 + 4ix2 + -16i2x + (-4i * -5x + x * -5x) + x2(-4i + x)) = 0
(-20ix + 80i2 + 4ix2 + -16i2x + (20ix + -5x2) + x2(-4i + x)) = 0
(-20ix + 80i2 + 4ix2 + -16i2x + 20ix + -5x2 + (-4i * x2 + x * x2)) = 0
(-20ix + 80i2 + 4ix2 + -16i2x + 20ix + -5x2 + (-4ix2 + x3)) = 0

Reorder the terms:
(-20ix + 20ix + 4ix2 + -4ix2 + 80i2 + -16i2x + -5x2 + x3) = 0

Combine like terms: -20ix + 20ix = 0
(0 + 4ix2 + -4ix2 + 80i2 + -16i2x + -5x2 + x3) = 0
(4ix2 + -4ix2 + 80i2 + -16i2x + -5x2 + x3) = 0

Combine like terms: 4ix2 + -4ix2 = 0
(0 + 80i2 + -16i2x + -5x2 + x3) = 0
(80i2 + -16i2x + -5x2 + x3) = 0

Solving
80i2 + -16i2x + -5x2 + x3 = 0

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '5x2' to each side of the equation.
80i2 + -16i2x + -5x2 + 5x2 + x3 = 0 + 5x2

Combine like terms: -5x2 + 5x2 = 0
80i2 + -16i2x + 0 + x3 = 0 + 5x2
80i2 + -16i2x + x3 = 0 + 5x2
Remove the zero:
80i2 + -16i2x + x3 = 5x2

Add '-1x3' to each side of the equation.
80i2 + -16i2x + x3 + -1x3 = 5x2 + -1x3

Combine like terms: x3 + -1x3 = 0
80i2 + -16i2x + 0 = 5x2 + -1x3
80i2 + -16i2x = 5x2 + -1x3

Reorder the terms:
80i2 + -16i2x + -5x2 + x3 = 5x2 + -5x2 + -1x3 + x3

Combine like terms: 5x2 + -5x2 = 0
80i2 + -16i2x + -5x2 + x3 = 0 + -1x3 + x3
80i2 + -16i2x + -5x2 + x3 = -1x3 + x3

Combine like terms: -1x3 + x3 = 0
80i2 + -16i2x + -5x2 + x3 = 0

The solution to this equation could not be determined.

See similar equations:

| -81=3k | | (Y-7)-(y+6)=3y | | 3x+7+x=7 | | 3u+5u-8= | | p^2-42q^2=1 | | 5a-6=12+3a | | 50=4.36s-7.4 | | 7x-4=4x+35 | | -12+24+13m+(-3m)=16 | | (k+4)(k-7)=0 | | 7-5=-5x-6x+7 | | 14a=10 | | P+8=14.8 | | 5a+6=12+3a | | 7x-6=-111 | | 9X=15-3X | | (5a+4)(a+3)=0 | | 7y+30=9y-2 | | g-21=-9 | | 3cosx=-5 | | 50+4.36s=7.4 | | 2x+5x+4=8 | | 15-4x/3x10 | | (6w+5)(6w-5)= | | -19x-14=-166 | | 50-4.36s=7.4 | | (3k-4)(k-5)=0 | | 2x+4x-5x+22+(-7)=18 | | -19x-14=166 | | X-12=2x-10 | | 48x+56x+3=x+11 | | 2(9m-2)=20 |

Equations solver categories