Question

7a+21a²+9a²+3a plz give answer lesson facorization

Answer 1

Answer:

Step-by-step explanation:

7a+21a2+9a2+3a=0

30a2+10a=0

10a(3a+1)=0

10a=0 or 3a+1=0

A=0 or a=-1/3

Answer 2

$<b>Answer :</b>$

10a ( 1 + 3a )



$<b>Step-by-step explaination :</b>$

7a + 21a² + 9a² + 3a

$<u>Step 1 : </u>$Add common terms.

= 7a + 3a + 21a² + 9a²

= 10a + 30a²

$<u>Step 2 : </u>$Take common from the result.

= 10a ( 1 + 3a )