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Popular >

simplify (-2-4i)(-2+4i)

Solution

simplify

(- 2 - 4 i) (- 2 + 4 i)

Solution

20

Solution steps

(- 2 - 4 i) (- 2 + 4 i)

Apply complex arithmetic rule:

(a + bi) (a - bi) = a^{2} + b^{2}

= (- 2)^{2} + (- 4)^{2}

(- 2)^{2} + (- 4)^{2} = 20

= 20

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Frequently Asked Questions (FAQ)

What is (-2-4i)(-2+4i) ?
The solution to (-2-4i)(-2+4i) is 20