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Popular >

simplify i(2+i)

Solution

simplify

i (2 + i)

Solution

- 1 + 2 i

Solution steps

i (2 + i)

Apply the distributive law:

a (b + c) = ab + a c

i (2 + i) = i 2 + ii

= i 2 + ii

i 2 = 2 i

ii = - 1

= 2 i - 1

Rewrite in standard complex form:

- 1 + 2 i

= - 1 + 2 i

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Frequently Asked Questions (FAQ)

What is i(2+i) ?
The solution to i(2+i) is -1+2i