Answer:
The dx of 9 is 9x
substitute 11 and 17 as x
9(17)=153
9(11)=99
Subtract the two products
153-99
=54
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Answer:
The dx of 9 is 9x
substitute 11 and 17 as x
9(17)=153
9(11)=99
Subtract the two products
153-99
=54