Simplify 5i(4-7i)

Math
Apply the distributive property.
Multiply by .
Multiply .
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Multiply by .
Raise to the power of .
Raise to the power of .
Use the power rule to combine exponents.
Add and .
Simplify each term.
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Rewrite as .
Multiply by .
Reorder and .
Simplify 5i(4-7i)

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