Calculate <mo stretchy="false">( 5 4 + 7 i <mo stretchy="false">) &#x2212

oglasnak9h01

oglasnak9h01

Answered question

2022-05-17

Calculate ( 5 4 + 7 i ) ( 4 + 3 i 8 ).

Answer & Explanation

Darion Sexton

Darion Sexton

Beginner2022-05-18Added 14 answers

Simplify each term.

54+7i-4-3i8

To write -4 as a fraction with a common denominator, multiply by 44.

54-444+7i-3i8

Combine -4 and 44.

54+-444+7i-3i8

Combine the numerators over the common denominator.

5-444+7i-3i8

Simplify the numerator.

-114+7i-3i8

Move the negative in front of the fraction.

-114+7i-3i8

To write 7i as a fraction with a common denominator, multiply by 88.

-114+7i88-3i8

Combine 7i and 88.

-114+7i88-3i8

Combine the numerators over the common denominator.

-114+53i8

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