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Popular >

simplify (9+i)(9-i)

Solution

simplify

(9 + i) (9 - i)

Solution

82

Solution steps

(9 + i) (9 - i)

Apply complex arithmetic rule:

(a + bi) (a - bi) = a^{2} + b^{2}

= 9^{2} + 1^{2}

9^{2} + 1^{2} = 82

= 82

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Frequently Asked Questions (FAQ)

What is (9+i)(9-i) ?
The solution to (9+i)(9-i) is 82