A man bought a pencil for rupees (4x+7)and pen for rupees(5x^2+7x-3). He gave rupees (2x^2+3x -5 )to the shopkeeper how much money did he get back??
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Answer:
- 3x² - 8x - 1
Step-by-step explanation:
Total amount paid for pen and pencil = 4x+7 + 5x² + 7x - 3 = 5x²+ 11x + 4
Amount returned = 2x²+ 3x - 5 - 5x² - 11x + 4 = - 3x² - 8x - 1
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