Answer: \(xy-9x-7y+63\)
Step-by-step explanation:
The given expression: \((x - 7)(y - 9)\)
We know that the distributive property is given by :-
\(a(b+c)=ab+ac\) [Left side]
\(OR\\\\(b+c)a=ba+ca\) [Right side]
So applying the distributive property(Left sides) in the above expression, we get
\((x - 7)y - (x - 7)9)\)
Again applying the distributive property (Right side) in the above expression, we get
\(= xy - 7y- 9x +(7)(9)\\\\xy-9x-7y+63\)