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Popular >

simplify (-2-7i)(-12+6i)

Solution

simplify

(- 2 - 7 i) (- 12 + 6 i)

Solution

66 + 72 i

Solution steps

(- 2 - 7 i) (- 12 + 6 i)

Apply complex arithmetic rule:

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

= (- 2 (- 12) - (- 7) \cdot 6) + (- 2 \cdot 6 - 7 (- 12)) i

Simplify

(- 2 (- 12) - (- 7) \cdot 6) + (- 2 \cdot 6 - 7 (- 12)) i : 66 + 72 i

= 66 + 72 i

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Frequently Asked Questions (FAQ)

What is (-2-7i)(-12+6i) ?
The solution to (-2-7i)(-12+6i) is 66+72i