1. The sum of two numbers is 2x2 – 3xy + 5y2. If one number isx2 + 2xy – 3y2, find the other.2.The weight of 39 bags of sugar is 3995.55kg. If all bags weigh equally, find the weight of each bag. 3. If A=7a2 + 5ab-9b2, B=-4a2 + ab + 5b2 and C=4b2 - 3a2 – 6ab, then Show that A+ B+ C=04.An elevator descends into mine shaft at the rate of 6m/min. If the descends starts from 10 m above the groundlevel, how long will it take to reach -350m?

1. The sum of two numbers is 2x2 – 3xy + 5y2. If one number isx2 +

1.	1. The sum of two numbers is 2x2 – 3xy + 5y2. If one number isx2 + 2xy – 3y2, find the other.2.The weight of 39 bags of sugar is 3995.55kg. If all bags weigh equally, find the weight of each bag. 3. If A=7a2 + 5ab-9b2, B=-4a2 + ab + 5b2 and C=4b2 - 3a2 – 6ab, then Show that A+ B+ C=04.An elevator descends into mine shaft at the rate of 6m/min. If the descends starts from 10 m above the groundlevel, how long will it take to reach -350m?
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