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Popular >

simplify (2-i)(3+i)

Solution

simplify

(2 - i) (3 + i)

Solution

7 - i

Solution steps

(2 - i) (3 + i)

Apply complex arithmetic rule:

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

= (2 \cdot 3 - (- 1) \cdot 1) + (2 \cdot 1 - 1 \cdot 3) i

Simplify

(2 \cdot 3 - (- 1) \cdot 1) + (2 \cdot 1 - 1 \cdot 3) i : 7 - i

= 7 - i

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Frequently Asked Questions (FAQ)

What is (2-i)(3+i) ?
The solution to (2-i)(3+i) is 7-i