Question

factors of x⁴ -y⁴ are​

Answer 1

Answer:

(x²+y²),(x+y),(x-y)

Step-by-step explanation:

$x {}^{4} - y {}^{4} = (x {}^{2} ) {}^{2} - (y {}^{2} ) {}^{2}$

Use a²+b²= (a+b)(a-b)

$(x {}^{2} + y {}^{2} )(x {}^{2} - y {}^{2} ) \\ = (x {}^{2} + y {}^{2} )(x + y)(x - y)$

(x²+y²), (x+y), (x-y)are the factors

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