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Popular >

simplify (8-5i)(8+5i)

Solution

simplify

(8 - 5 i) (8 + 5 i)

Solution

89

Solution steps

(8 - 5 i) (8 + 5 i)

Apply complex arithmetic rule:

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

= 8^{2} + (- 5)^{2}

8^{2} + (- 5)^{2} = 89

= 89

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Frequently Asked Questions (FAQ)

What is (8-5i)(8+5i) ?
The solution to (8-5i)(8+5i) is 89