Question

Factorize: 9a²+ 30a +25​

Answer 1

Answer:

(3a+5) (3a+5)

Step-by-step explanation:

9a^2+30a+25= (3a)^2+2.3a.5+5^2=(3a+5)^2

Answer 2

Answer:

1.multiply 9and 25

2.you will receive 225

3.separate the 225 into

4. while you multiple 15 x 15 you will receive 225 right

5.while you add them you receive 30

and then divide the 15 onbothe side

6.now you will receive 1/2 on both side

7.from that take and write as 2a plus 1=0

and then 2a = -1

8.a= -1/2

Step-by-step explanation:

9a^plus 30a plus 25

(2a plus 1)(2a plus 1)

2a plus 1=0

2a= -1

a=-1/2

hence, the value of a= -1/2