3 points
The sum and product of two
numbers are 12 and 35
respectively. The sum of their
squares will be?
O 12
O 49
O
25
O 74
Answers
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4
Required Answer:-
Given:
- The sum and product of two numbers are 12 and 35 respectively.
To find:
- The sum of the squares of the number.
Solution:
Let the numbers be x and y.
Therefore, according to the conditions,
➡ x + y = 12
➡ xy = 35
➡ (x + y)² = 12² (Squaring both sides)
➡ x² + y² + 2xy = 144
➡ x² + y² + 2 × 35 = 244
➡ x² + y² + 70 = 144
➡ x² + y² = 144 - 70
➡ x² + y² = 74
Hence, the sum of the squares of the number is 74.
Answer:
- The sum of the squares of the number is 74.
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4
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