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Popular >

simplify 9i(9-8i)

Solution

simplify

9 i (9 - 8 i)

Solution

72 + 81 i

Solution steps

9 i (9 - 8 i)

Apply the distributive law:

a (b - c) = ab - a c

9 i (9 - 8 i) = 9 i 9 - 9 i 8 i

= 9 i 9 - 9 i 8 i

9 i 9 = 81 i

- 9 i 8 i = 72

= 81 i + 72

Rewrite in standard complex form:

72 + 81 i

= 72 + 81 i

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Frequently Asked Questions (FAQ)

What is 9i(9-8i) ?
The solution to 9i(9-8i) is 72+81i