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secondary 3 | A Maths
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wrf
Wrf

secondary 3 chevron_right A Maths chevron_right Singapore

Hi, please help

Date Posted: 4 years ago
Views: 170

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Boy Mow Chau
Boy Mow Chau's answer
316 answers (Tutor Details)
1st
if the equation has terms with a^(2x) and a^x ,
or a^x and a^(-x),
then you can solve as a quadratic equation.

use substitution u = a^x to make the working easier to read,
substitute back a^x at the end.

remember to check each answer to see if the answer is valid.