Question

factorise the following expression 25m^2+30m+9​

Answer 1

Answer:

Step-by-step explanation:

first find how to separate middle term

find possible factors of 25 X 9 which add to 30

25 X 9 = 5 X 5 X 3 X 3 =15 X 15

now

25m^2+30m+9

=25m^2+15m+15m+9

=5m(5m+3)+3(5m+3)

=(5m+3)(5m+3)