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Perform the indicated operation and write and standard form. -7i(6i-3)

Perform the indicated operation and write and standard form. -7i(6i-3)
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4 votes
Perform the indicated operation and write and standard form. -7i(6i-3)

User Mehmet Mecek
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2 Answers

4 votes

-7i(6i-3)=\\ -42\cdot(-1)+21i=\\ 42+21i
User Zaius
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-7i (6i - 3)

Perform the distributed multiplication to eliminate the parentheses:

-7i (6i) - 7i (-3) = -42i² + 21i

IF i = √-1 , then the expression is equal to (42 + 21i) or 21(2 + i) .
User Kangkan
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