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Popular >

simplify (2-i)(2-i)

Solution

simplify

(2 - i) (2 - i)

Solution

3 - 4 i

Solution steps

(2 - i) (2 - i)

Apply complex arithmetic rule:

(a + bi) (c + d i) = (a c - b d) + (a d + b c) i

= (2 \cdot 2 - (- 1) (- 1)) + (2 (- 1) - 1 \cdot 2) i

Simplify

(2 \cdot 2 - (- 1) (- 1)) + (2 (- 1) - 1 \cdot 2) i : 3 - 4 i

= 3 - 4 i

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Frequently Asked Questions (FAQ)

What is (2-i)(2-i) ?
The solution to (2-i)(2-i) is 3-4i