Mathematics: Match the each equation to the correct description you may use the description more then once

(3 + 8i)(3 – 8i) = 73Step-by-step explanation:To multiply it we use FOIL methodFirst we multiply 3 by the terms inside second parenthesisNow we multiply 8i inside second parenthesisCombine all the termsThe value of i^2 = -19 + 64= 73...

Match the each equation to the correct description

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Clervoyantyvonne

30.12.2021

Mathematics

(3 + 8i)(3 – 8i) = 73

Step-by-step explanation:

(3 + 8i)(3 – 8i)

To multiply it we use FOIL method

First we multiply 3 by the terms inside second parenthesis

3*3= 9

3 * -8i= -24

Now we multiply 8i inside second parenthesis

8i * 3= 24i

8i * (-8i) = -64i^2

Combine all the terms

9 - 24i + 24i - 64i^2

The value of i^2 = -1

9 - 24i + 24i - 64(-1)

9 + 64= 73

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Match the each equation to the correct description you may use the description more then once

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