Question

a4-5asquare+36 factorisation

Answer 1

Answer:

please check on Google

Answer 2

Answer:

$(a^{2}-9 )(a^{2}+4 )$

Step-by-step explanation:

$a^{4}-5a^{2}-36$

$a^{4}-9a^{2}+4a^{2}-36$

$a^{2} (a^{2}-9)+4(a^{2}-9)$

$(a^{2}-9 )(a^{2}+4 )$