Answer:
c.
Step-by-step explanation:

Here I have included 3 methods: Differentiating, Integrating and factorize
Differentiating:




Integrating:


Factorise:

Answer 169
This is because 13x13=169
Answer:
5(x+3)
Step-by-step explanation:
The greatest common factor from both numbers is 5, so you divide them both by 5 and put the 5 outside of the parenthesis and then put x+3 inside the parenthesis because 5x divided by 5 is x and 15 divided by 5 is 3.
Answer:
Top right (one what has 16cm^2 and 9cm^2)
Step-by-step explanation:
The one in the top right and even though I cannot see what the area is of the biggest square, I can tell what it should be the two smaller squares combined
Hope this helps :)