Chan Zhi Zhen's answer to To bo zhen's Secondary 1 Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Take note of the sign change in 17
Date Posted:
4 years ago
Why is there a sign change? Thanks
-1(p-17) = (-1)(p)+(-1)(-17) = -p+17