-9i(7i-2)=

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Solution for -9i(7i-2)= equation: 


Simplifying
-9i(7i + -2) = 0

Reorder the terms:
-9i(-2 + 7i) = 0
(-2 * -9i + 7i * -9i) = 0
(18i + -63i2) = 0

Solving
18i + -63i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '9i'.
9i(2 + -7i) = 0

Ignore the factor 9.

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 '(2 + -7i)' equal to zero and attempt to solve:

Simplifying
2 + -7i = 0

Solving
2 + -7i = 0

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

Add '-2' to each side of the equation.
2 + -2 + -7i = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -7i = 0 + -2
-7i = 0 + -2

Combine like terms: 0 + -2 = -2
-7i = -2

Divide each side by '-7'.
i = 0.2857142857

Simplifying
i = 0.2857142857
Solution
i = {0, 0.2857142857}

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