Question

factorise 16a^4+54a​

Answer 1

$\rm16a{}^{4}+54a$

$\rm 2a(8a{}^{3}+27$

$\rm 2a[(2a){}^{3}+(3){}^{3}]$

$\rm 2a[2a+3)(4a{}^{2}-6a+9]$