travis5625 travis5625

10-08-2020
Mathematics

contestada

Which of the following expression is equal to X^2+9

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jkaliman9369 jkaliman9369

10-08-2020

Answer:

(x + 3i) * (x - 3i) = x^2 + 3xi - 3xi - 9(i^2) = x^2 + 9

Step-by-step explanation:

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