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Popular >

simplify (2-6i)(7+i)

Solution

simplify

(2 - 6 i) (7 + i)

Solution

20 - 40 i

Solution steps

(2 - 6 i) (7 + i)

Apply complex arithmetic rule:

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

= (2 \cdot 7 - (- 6) \cdot 1) + (2 \cdot 1 - 6 \cdot 7) i

Simplify

(2 \cdot 7 - (- 6) \cdot 1) + (2 \cdot 1 - 6 \cdot 7) i : 20 - 40 i

= 20 - 40 i

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Frequently Asked Questions (FAQ)

What is (2-6i)(7+i) ?
The solution to (2-6i)(7+i) is 20-40i