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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