factorise x⁴-y⁴+x²-y²
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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:
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