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WARRIOR [948]
3 years ago
8

Factor the polynomial expression x4 + 18x2 + 81

Mathematics
1 answer:
Akimi4 [234]3 years ago
4 0

Answer: (x^2+9)^2

Step-by-step explanation:

Rewrite it in the form a^2+2ab+b^2 , where a=x^2 and b=9.

(x^2)^2+2(x^2)(9)+9^2

Use Square of Sum: (a+b)^2= a^2+2ab+b^2

(x^2+9)^2

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