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Popular >

simplify 3i(4-i)

Solution

simplify

3 i (4 - i)

Solution

3 + 12 i

Solution steps

3 i (4 - i)

Apply the distributive law:

a (b - c) = ab - a c

3 i (4 - i) = 3 i 4 - 3 ii

= 3 i 4 - 3 ii

3 i 4 = 12 i

- 3 ii = 3

= 12 i + 3

Rewrite in standard complex form:

3 + 12 i

= 3 + 12 i

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Frequently Asked Questions (FAQ)

What is 3i(4-i) ?
The solution to 3i(4-i) is 3+12i