How do you simplify 11y3?

2 Answers
Mar 12, 2018

11y33

Explanation:

The simplification required is to remove the root from the denominator of the fraction (so that roots are confined to the numerator).

This may be achieved by multiplying by 1 (so that the value of the overall expression is unchanged), but choosing an appropriately constructed expression that evaluates to 1 (noting that anything divided by itself (excluding zero) equals 1).

The specially chosen instance of 1 requires a number in its denominator that will remove the root. This can be achieved by multiplying by something divided by 3, as 3×3=3. To ensure the complete number is 1, the numerator must also have 3.

So, the required simplification is

11y3×33

11y33

Mar 12, 2018

11y3=11y33

Explanation:

Simplify by rationalizing the denominator:

11y3×33

=11y×3(3)2

=11y33