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secondary 4 | A Maths
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In the form of a(x-h) ^2+k
Date Posted: 6 years ago
Views: 328
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The step with a red box is to complete a square within an expression itself.
Suppose you have x^2 - ax
To complete the square for above expression, add and subtract (a/2)^2 at the same time giving you
x^2 - ax + (a/2)^2 - (a/2)^2
= [x-(a/2)^2] - (a/2)^2
Suppose you have x^2 - ax
To complete the square for above expression, add and subtract (a/2)^2 at the same time giving you
x^2 - ax + (a/2)^2 - (a/2)^2
= [x-(a/2)^2] - (a/2)^2
Date Posted:
6 years ago
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