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Popular >

simplify (4+7i)(4-7i)

Solution

simplify

(4 + 7 i) (4 - 7 i)

Solution

65

Solution steps

(4 + 7 i) (4 - 7 i)

Apply complex arithmetic rule:

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

= 4^{2} + 7^{2}

4^{2} + 7^{2} = 65

= 65

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Frequently Asked Questions (FAQ)

What is (4+7i)(4-7i) ?
The solution to (4+7i)(4-7i) is 65