Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 3 | E Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Josephine
Josephine

secondary 3 chevron_right E Maths

Q3

Date Posted: 7 years ago
Views: 697

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Max
Max's answer
33 answers (A Helpful Person)
For part (a), you need to know how to use "completing the square" method!

Note that when you square root a term with power of 2, the other side needs a "plus minus" sign, because the negative part of the solution when squared will become positive.

Hope this helps!