Ask Singapore Homework?

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



Question

secondary 3 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
macdoodles
Macdoodles

secondary 3 chevron_right A Maths chevron_right Singapore

pls help dangu

Date Posted: 1 year ago
Views: 156

See 1 Answer

(3-2√3)(4+a√3) = b-23√3
12-8√3+3a√3-6a = b-23√3
12-6a+(3a-8)√3 = b-23√3
By comparison
3a-8 = -23
3a = -15
a = -5
12-6a = b
12-6(-5) = b
b = 42
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jun Heng
Jun Heng's answer
37 answers (Tutor Details)
1st