(-6i)(-2i)+(7i)(5-i)=0

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Solution for (-6i)(-2i)+(7i)(5-i)=0 equation:


Simplifying
(-6i)(-2i) + (7i)(5 + -1i) = 0

Remove parenthesis around (-6i)
-6i(-2i) + (7i)(5 + -1i) = 0

Remove parenthesis around (-2i)
-6i * -2i + (7i)(5 + -1i) = 0

Reorder the terms for easier multiplication:
-6 * -2i * i + (7i)(5 + -1i) = 0

Multiply -6 * -2
12i * i + (7i)(5 + -1i) = 0

Multiply i * i
12i2 + (7i)(5 + -1i) = 0

Remove parenthesis around (7i)
12i2 + 7i(5 + -1i) = 0
12i2 + (5 * 7i + -1i * 7i) = 0
12i2 + (35i + -7i2) = 0

Reorder the terms:
35i + 12i2 + -7i2 = 0

Combine like terms: 12i2 + -7i2 = 5i2
35i + 5i2 = 0

Solving
35i + 5i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '5i'.
5i(7 + i) = 0

Ignore the factor 5.

Subproblem 1

Set the factor 'i' equal to zero and attempt to solve: Simplifying i = 0 Solving i = 0 Move all terms containing i to the left, all other terms to the right. Simplifying i = 0

Subproblem 2

Set the factor '(7 + i)' equal to zero and attempt to solve: Simplifying 7 + i = 0 Solving 7 + i = 0 Move all terms containing i to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + i = 0 + -7 Combine like terms: 7 + -7 = 0 0 + i = 0 + -7 i = 0 + -7 Combine like terms: 0 + -7 = -7 i = -7 Simplifying i = -7

Solution

i = {0, -7}

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