You have to use the
5a*5a = 25a2 ---First
5a*5 = 25a ---Outside
5*5a = 25a ---Inside
5*5 = 25 ---Last
And now you add all these up for your answer.
25a2 +25a + 25a+ 25
25a2 + 50a + 25
And there you go, that's your answer.
So we wil solve this like;
$$=5a(5a+5)+5(5a+5)$$ (now we will multiply them)
$$=25a^2+25a+25a+25$$ (now we will add the like values)
i hope uve understood by now but if not then pls be freee to ask!
Hope this helps!
They are both fantastic answers. Thank you very much.
Actually I have a 3rd answer.
(5a+5)(5a+5) This is a perfect square so there is a nice short cut