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Math·Advanced Math·Nonlinear functions

easy

Two numbers have a product $y$, such that one number is $x$ and the other number is 99 less than $x$. Which of the following equations represents the relationship between $y$ and $x$?

A

$y=x(x)+99$

B

$y=x(x)-99$

C

$y=x(x+99)$

D

$y=x(x-99)$