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Popular >

simplify (4+5i)(4-5i)

Solution

simplify

(4 + 5 i) (4 - 5 i)

Solution

41

Solution steps

(4 + 5 i) (4 - 5 i)

Apply complex arithmetic rule:

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

= 4^{2} + 5^{2}

4^{2} + 5^{2} = 41

= 41

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x^{2} + 16 x + 55 = 0

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factor 4x^4+4x^3+x^2 factor

4 x^{4} + 4 x^{3} + x^{2}

simplify (2^{-3}x^0)/(y^{-4)}simplify

\frac{2 ^{- 3} x ^{0}}{y ^{- 4}}

Frequently Asked Questions (FAQ)

What is (4+5i)(4-5i) ?
The solution to (4+5i)(4-5i) is 41