two natural numbers are such that they differ by 2 and their product is 48 find the number
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Let the numbers be a and b.
Given:
Difference of the numbers = 2
→ a - b = 2 -- equation (1)
Product of the numbers = 48
→ ab = 48 -- equation (2)
We know that,
(a + b)² = (a - b)² + 4ab
→ (a + b)² = (2)² + 4(48)
→ (a + b)² = 4 + 192
→ (a + b)² = 196
→ a + b = 14 -- equation (3).
Adding equations (1) & (3) we get,
→ 2a = 2 + 14
→ 2a = 16
→ a = 8
Substitute a in equation (1)
→ a - b = 2
→ 8 - b = 2
→ b = 8 - 2
→ b = 6
The numbers are 8 and 6 .
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