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secondary 4 | A Maths
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xinrann
Xinrann

secondary 4 chevron_right A Maths

dy/dx is correct. and dy/dx=1/4 how do i solve for x?

Date Posted: 5 years ago
Views: 334
Christmas MT
Christmas MT
5 years ago
Shift x to the right side. Square both sides. Expand the right side. Shift everything back to the left. You should now get a cubic equation. Solve using the standard method (guess root, factorise etc).

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James
James's answer
31 answers (Tutor Details)
1st
Technique: we do not know how to solve equations in the form of x + x^(3/2) = 2. So we manipulate it into sth we are familiar with: the cubic equation!
You should find it a breeze from there on, if you are familiar with solving cubic equations in general:)
xinrann
Xinrann
5 years ago
thank you!