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Popular >

simplify (14-2i)(7+12i)

Solution

simplify

(14 - 2 i) (7 + 12 i)

Solution

122 + 154 i

Solution steps

(14 - 2 i) (7 + 12 i)

Apply complex arithmetic rule:

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

= (14 \cdot 7 - (- 2) \cdot 12) + (14 \cdot 12 - 2 \cdot 7) i

Simplify

(14 \cdot 7 - (- 2) \cdot 12) + (14 \cdot 12 - 2 \cdot 7) i : 122 + 154 i

= 122 + 154 i

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9x^4-97x^2+144<= 0

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Frequently Asked Questions (FAQ)

What is (14-2i)(7+12i) ?
The solution to (14-2i)(7+12i) is 122+154i