The expression that can be used to completely rationalize the rational fraction is 20/√5 is 20/√5 * √5/√5 based on the given expression
Rational expressions are expressions that are represented by the quotient of two polynomials or radicals. This means that, a rational expression is represented by a fraction whose numerator and denominator are polynomials or radicals
The irrational expression is given as:
20/√5
To rationalize the irrational expression, we multiply the numerator and the denominator by √5
So, we have:
20/√5 * √5/√5
Evaluate the product in the above expression
20√5/(√5 * √5)
This gives
20√5/(5)
Divide 20 and 5 by 5
4√5
The above expression shows that the expression has been completely rationalized
Based on the given expression, the expression that can be used to completely rationalize the rational fraction is 20/√5 is 20/√5 * √5/√5
Read more about rationalized expressions at:
https://brainly.com/question/20379833
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