Calculate <mo stretchy="false">( 7 + 10 i <mo stretchy="false">) &#x2212;<!-- − -->

measgachyx5q9

measgachyx5q9

Answered question

2022-05-17

Calculate ( 7 + 10 i ) ( 4 7 + i 3 ).

Answer & Explanation

graffus1hb30

graffus1hb30

Beginner2022-05-18Added 15 answers

Apply the distributive property.

7+10i-47-i3

To write 7 as a fraction with a common denominator, multiply by 77.

777-47+10i-i3

Combine 7 and 77.

777-47+10i-i3

Combine the numerators over the common denominator.

77-47+10i-i3

Simplify the numerator.

457+10i-i3

To write 10i as a fraction with a common denominator, multiply by 33.

457+10i33-i3

Combine 10i and 33.

457+10i33-i3

Combine the numerators over the common denominator.

457+29i3

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