Question

16a⁴+54a factorise this expression​

Answer 1

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16a4 + 54a = 2a(8a3 + 27)

2a(( 2a)3 + (3)3 ))

a3 + b3 = ( a + b)(a2 + b2 - ab)

2a((2a + 3)(4a2 + 9 - 6a))

= (2a)(2a + 3)(4a2 - 6a + 9)

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