Step-by-step explanation:
Given data:
We find the equivalent value the expression .
The value –80 can be written as –1 × 16 × 5.
Now, substitute the value of –80 in the given expression.
(16 is the square number of 4)
(Square number can be taken out)
(4 in the numerator and denominator are cancel)
Since,
So, the expression is equivalent to .