Question

Please I need step by step answer. facyorise a2+8a+15​

Answer 1

I have no idea what it is but I need to answer somthing so... ;-;

Answer 2

Answer:

(+3)(+5)

Step-by-step explanation:

Let's factor a2+8a+15

a2+8a+15

The middle number is 8 and the last number is 15.  

Factoring means we want something like

(a+_)(a+_)

Which numbers go in the blanks?

 

We need two numbers that...

Add together to get 8

Multiply together to get 15

Can you think of the two numbers?

Try 3 and 5:

3+5 = 8

3*5 = 15

Fill in the blanks in

(a+_)(a+_)

with 3 and 5 to get...

(a+3)(a+5)