What is the product?

negative 9 x (5 minus 2x)

a) 18 x squared minus 45 x
b) negative 18 x squared minus 45 x
c )negative 18 x minus 45 x
d) 18 x minus 45 x

option A is the correct one

Step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it