A bookseller sold a' number of geography textbooks at the rate of ` x per book, a + 2' number of history textbooks at the rate of ` (x + 2) per book and a - 2' number of mathematics textbooks at the rate of ` (x - 2) per book. What is his total sale in
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The total sale would be:
a.x+(a+2)(x+2)+(a-2)(x-2)
a.x+a.x+2a+2x+4+a.x-2a-2x+4
3a.x+8
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Answer:
Step-by-step explanation:ax+4+4+ax+ax=3ax+8
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