Question

factorise using the suitable method
$36a ^{2} + 36a + 9$
​

Answer 1

Step-by-step explanation:

36x9= 324

factors of 324= 2x2x3x3x3x3

$36 a^{2} + 18a+18a+9\\18a(2a+1) +2(2a+1)\\(2a+1)(18a+2) taking 2 common from 18a+2\\2(2a+1)(18a+2)$

also, if you equate with 0.. you can get the value of just "a"

if thats needed

hope this helps

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