English, asked by tanveerchawla50, 6 months ago

Factorise:-)
a^4 - 7a^2 + 1​

Answers

Answered by bhowmik2018piu
0

Explanation:

a⁴-7a²+1

= a⁴-4a²+1-3a²

= (a²)²-4*a²*1+(1)²-3a²

= (a²+1)²-3a²

= (a²+1)²-(√3 a)²

= (a²+1+√3a)(a²+1-√3a)

= (a²+√3a+1)(a²-√3a+1)

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