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Popular >

simplify (-2-4i)7i

Solution

simplify

(- 2 - 4 i) 7 i

Solution

28 - 14 i

Solution steps

(- 2 - 4 i) \cdot 7 i

= 7 i (- 2 - 4 i)

Apply the distributive law:

a (b - c) = ab - a c

7 i (- 2 - 4 i) = 7 i (- 2) - 7 i 4 i

= 7 i (- 2) - 7 i 4 i

Simplify

7 i (- 2) - 7 i 4 i : - 14 i + 28

= - 14 i + 28

Rewrite in standard complex form:

28 - 14 i

= 28 - 14 i

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Frequently Asked Questions (FAQ)

What is (-2-4i)7i ?
The solution to (-2-4i)7i is 28-14i