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MAXImum [283]
3 years ago
10

How to factor 9x^4-6x^2y^4+y^89x4−6x2y4+y8

Mathematics
1 answer:
Virty [35]3 years ago
8 0

Answer:

(3x^2-y^4)(3x^2-y^4)

Step-by-step explanation:

We'll assume the correct expression to be factored is

9x^4-6x^2y^4+y^8

One must try to find out if the expression is a perfect square. To test it, we'll take the square root of the first and the last term. If they are exact, we'll procceed with the next step

\sqrt{9x^4}=3x^2

\sqrt{y^8}=y^4

Since both are exact, we'll test if the middle term is twice the product of both square roots:

2(3x^2)(y^4)=6x^2y^4

We confirm the middle term equals the above expression. All tests confirm the original expression is

\left ( 3x^2-y^4 \right )^2

The required factoring is

(3x^2-y^4)(3x^2-y^4)

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