Answers
Answer:
x+1x=4x+1x=4
⟹(x+1x)2=42⟹(x+1x)2=42
⟹x2+1x2+2=16⟹x2+1x2+2=16
⟹x2+1x2=14⟹x2+1x2=14
⟹(x2+1x2)2=142⟹(x2+1x2)2=142
⟹x4+1x4+2=196⟹x4+1x4+2=196
⟹x4+1x4=194
Expression so by multiplying we get,
(5x+7)×(3x+4)
⇒5x(3x+4)+7(3x+4)
⇒15x2+20x+21x+28
⇒15x2+41x+28
Answer:
Solve the following word problems:
1. Mike purchased a vehicle for Rs 59425 and spent Rs 8652 on repairs. How much did the vehicle cost him?
2. 82317 people watched the semi-final of the world cup football match, but 31896 more people watched the finals. Find the number of people who watched the finals.
3. Two brothers bought a new television set and gave their old television in exchange. Their old television values Rs 7850. They had to pay the dealer Rs 29375. What was the cost of the new television set?
4. There are 45678 males, 32257 females and 59179 children in a town. Find the total population of the town.