11-05-2019
Mathematics

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Factor x^2 + 25 in the complex numbers.

PLEASE HELP ASAP CORRECT ANSWER ONLY PLEASE Factor x2 25 in the complex numbers class=

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tramserran tramserran

12-05-2019

Answer: C) (x + 5i)(x - 5i)

Step-by-step explanation:

x² + 25 can be rewritten as x² - (-25)

Now use the difference of squares to factor: a² - b² = (a + b)(a - b)

√x² = x √-25 = 5i

--> x² + 25 = (x + 5i)(x - 5i)

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