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secondary 3 | A Maths
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Chelsea
Chelsea

secondary 3 chevron_right A Maths chevron_right Singapore

Pls help me with q10

Date Posted: 4 years ago
Views: 243
Eric Nicholas K
Eric Nicholas K
4 years ago
An idea is to square both sides.

Will look at this by 4 am.

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Adrian Yeo
Adrian Yeo's answer
6 answers (Tutor Details)
1st
Square both sides to make a polynomial equation. Bring to one side and make the equations equal to zero . Next, use your calculator to find polynomial roots of X
Eric Nicholas K
Eric Nicholas K
4 years ago
You must reject x = 1, since the square root of 2x2 - 4x + 3 in the original equation needs to be positive.