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Popular >

simplify i(2-7i)^2

Solution

simplify

i (2 - 7 i)^{2}

Solution

28 - 45 i

Solution steps

i (2 - 7 i)^{2}

Expand

(2 - 7 i)^{2} : - 28 i - 45

= i (- 28 i - 45)

Apply the distributive law:

a (b - c) = ab - a c

i (- 28 i - 45) = i (- 28 i) - i 45

= i (- 28 i) - i 45

i (- 28 i) = 28

- i 45 = - 45 i

= 28 - 45 i

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Frequently Asked Questions (FAQ)

What is i(2-7i)^2 ?
The solution to i(2-7i)^2 is 28-45i