Question

Ramesh bought bread for Rs 7x² +69 x +113 and butter for Rs 13x² -17 x -111 . He gave a Rs 21x² -15 x +11 note. How much will he get back?
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Answer 1

Answer:

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Step-by-step explanation:

Cost of bread = Rs 7x² +69 x +113

Cost of butter = Rs. 13x² -17 x -111

Total cost = (7x² +69 x +113) +  (13x² -17 x -111)

=   7x² +69 x +113 + 13x² -17 x -111

= 20x² + 52x + 2

Money given by ramesh to shopkeeper =   Rs 21x² -15 x +11

Leftover money to be returned to ramesh = Money given by ramesh to shopkeeper - Total Cost

= (21x² -15 x +11) - (20x² + 52x + 2)

= 21x² -15 x +11 - 20x² - 52x - 2

= x² - 67x + 9

Hence, the answer is x² - 67x + 9