Step-by-step explanation:
Q Nine divided by the product of a number and Five
Let the number = x
product of a number and Five = x * 5 = 5x
The expression is given as;
[tex]\frac{9}{5x}[/tex]
Q2 The product of a sum and difference of x and y
Sum of x and y = x + y
Difference of x and y = x - y
The expression is given as;
(x + y) * ( x -y)
x^2 + xy - xy - y^2
x^2 - y^2
