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Popular >

simplify (x-(1+2i))(x-(1-2i))

Solution

simplify

(x - (1 + 2 i)) (x - (1 - 2 i))

Solution

x^{2} + 5 - 2 x

Solution steps

(x - (1 + 2 i)) (x - (1 - 2 i))

Apply FOIL method

(x - (1 + 2 i)) (x - (1 - 2 i)) : x^{2} + 5 - 2 x

= x^{2} + 5 - 2 x

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Frequently Asked Questions (FAQ)

What is (x-(1+2i))(x-(1-2i)) ?
The solution to (x-(1+2i))(x-(1-2i)) is x^2+5-2x