-3(2-i)(4-5i)=b

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Solution for -3(2-i)(4-5i)=b equation: 


Simplifying
-3(2 + -1i)(4 + -5i) = b

Multiply (2 + -1i) * (4 + -5i)
-3(2(4 + -5i) + -1i * (4 + -5i)) = b
-3((4 * 2 + -5i * 2) + -1i * (4 + -5i)) = b
-3((8 + -10i) + -1i * (4 + -5i)) = b
-3(8 + -10i + (4 * -1i + -5i * -1i)) = b
-3(8 + -10i + (-4i + 5i2)) = b

Combine like terms: -10i + -4i = -14i
-3(8 + -14i + 5i2) = b
(8 * -3 + -14i * -3 + 5i2 * -3) = b
(-24 + 42i + -15i2) = b

Solving
-24 + 42i + -15i2 = b

Solving for variable 'i'.

Reorder the terms:
-24 + -1b + 42i + -15i2 = b + -1b

Combine like terms: b + -1b = 0
-24 + -1b + 42i + -15i2 = 0

The solution to this equation could not be determined.

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