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Popular >

simplify (7-i)(1+5i)

Solution

simplify

(7 - i) (1 + 5 i)

Solution

12 + 34 i

Solution steps

(7 - i) (1 + 5 i)

Apply complex arithmetic rule:

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

= (7 \cdot 1 - (- 1) \cdot 5) + (7 \cdot 5 - 1 \cdot 1) i

Simplify

(7 \cdot 1 - (- 1) \cdot 5) + (7 \cdot 5 - 1 \cdot 1) i : 12 + 34 i

= 12 + 34 i

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Frequently Asked Questions (FAQ)

What is (7-i)(1+5i) ?
The solution to (7-i)(1+5i) is 12+34i