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Popular >

simplify (x+i)(x-i)

Solution

simplify

(x + i) (x - i)

Solution

x^{2} + 1

Solution steps

(x + i) (x - i)

Apply complex arithmetic rule:

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

= x^{2} + 1^{2}

1^{2} = 1

= x^{2} + 1

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Frequently Asked Questions (FAQ)

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