Question

factorise x⁴-y⁴+x²-y²​

Answer 1

Answer:

Step-by-step explanation:

☞ Factorisation of the above expression is (x+y)(x-y)(x²+y²+1)

✭ x⁴-y⁴+x²-y²

☆ The factorised form of the above expression

➢ (x⁴-y⁴)+(x²-y²)

➢ [(x²)²-(y²)²]+(x²-y²)

➢ (x²+y²)(x²-y²)+(x²-y²)

➢ (x²-y²)(x²+y²+1)

➢  

Some important formulas:

(a+b)³ = a³+b³+3ab(a+b)

(a-b)³ = a³-b³-3ab(a-b)

a³+b³ = (a+b)(a²+b²-ab

Answer 2

Answer:

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