Preetashini's answer to Nur Ayuni Yazid's Secondary 3 E Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Preetashini
Preetashini's answer
2 answers (Tutor Details)
1st
Hi! What you did was correct! Just that you didnt see the common factors were 2^n so you can cancel them off! As seen in the pic. Maybe you can try the same method for partb too and see if you get the answer! :-)