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Popular >

simplify (11-5i)(-1+2i)

Solution

simplify

(11 - 5 i) (- 1 + 2 i)

Solution

- 1 + 27 i

Solution steps

(11 - 5 i) (- 1 + 2 i)

Apply complex arithmetic rule:

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

= (11 (- 1) - (- 5) \cdot 2) + (11 \cdot 2 - 5 (- 1)) i

Simplify

(11 (- 1) - (- 5) \cdot 2) + (11 \cdot 2 - 5 (- 1)) i : - 1 + 27 i

= - 1 + 27 i

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Frequently Asked Questions (FAQ)

What is (11-5i)(-1+2i) ?
The solution to (11-5i)(-1+2i) is -1+27i