Question

13. x4 - (y + 1) = 4 favtorise​

Answer 1

Answer: (x+y)(x-y)(x²-y²)

Explanation:

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We know the algebraic identity:

a²-b² = (a+b)(a-b)----(1)

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Factors of x⁴-y⁴

= (x²)²-(y²)²

= (x²-y²)(x²+y²) [from (1)]

= (x-y)(x+y)(x²+y²) [from(1)]

Therefore,

x⁴-y⁴ = (x-y)(x+y)(x²+y²)

Answer 2

Answer:

refer to the attachment drop some thx plz