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Sedaia [141]
3 years ago
12

Factor completely. x^4 - 9.

Mathematics
1 answer:
tester [92]3 years ago
7 0

Answer:

(x^2+3)(x^2-3)

Step-by-step explanation:

Since both are perfect squares use the difference of squares formula a^2-b^2=(a+b)(a-b) with a = x^{2} and b = 3

=(x^2 +3)(x^2-3)

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Equation 1)  x + 6y = 2
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