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Popular >

simplify 4i(8+5i)

Solution

simplify

4 i (8 + 5 i)

Solution

- 20 + 32 i

Solution steps

4 i (8 + 5 i)

Apply the distributive law:

a (b + c) = ab + a c

4 i (8 + 5 i) = 4 i 8 + 4 i 5 i

= 4 i 8 + 4 i 5 i

4 i 8 = 32 i

4 i 5 i = - 20

= 32 i - 20

Rewrite in standard complex form:

- 20 + 32 i

= - 20 + 32 i

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Frequently Asked Questions (FAQ)

What is 4i(8+5i) ?
The solution to 4i(8+5i) is -20+32i