Simplify the expression: (7m−8n)2(7m+8n)2(7m)2−(8n)2
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Q4
Simplify:
(7m−8n)2+(7m+8n)2.
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Q5
Two objects attract each other with a gravitational force of 10−8N, when separated by 20 cm. If their total mass is 5 kg,the mass of the objects in kg , are