Typical surd expressions take the form
To
simplify an expression like this we multiply numerator (top) and
denominator (bottom) by the conjugate root of the bottom. In this
case the conjugate root isThe
ontain an expression of the formover
d whereare
whole numbers in all these equations.
Example:
Rationalise the denominator and simplify:
Example:
Rationalise the denominator and simplify:
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