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Popular >

simplify 5i(3+i)

Solution

simplify

5 i (3 + i)

Solution

- 5 + 15 i

Solution steps

5 i (3 + i)

Apply the distributive law:

a (b + c) = ab + a c

5 i (3 + i) = 5 i 3 + 5 ii

= 5 i 3 + 5 ii

5 i 3 = 15 i

5 ii = - 5

= 15 i - 5

Rewrite in standard complex form:

- 5 + 15 i

= - 5 + 15 i

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Frequently Asked Questions (FAQ)

What is 5i(3+i) ?
The solution to 5i(3+i) is -5+15i