3 years ago

Factor each: x^8-13x^4+36=0

1 answer:

6 0

Answer:

Step-by-step explanation:

a = x^4

a^2 - 13a +36 = 0

(a-4)*(a-9)=0

a = 4, a = 9

x^4 = 4, x^4 = 9

x = + or - 4th root of 9 and 4

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