Step-by-step explanation:
Given:
We know that:
(a + b)² = a² + 2ab + b²
Now , substituting the value in equation,we get.
=> (a + b)² = 73 + 2 × 24
=> (a + b)² = 73 + 48
=> (a + b)² = 121
=> (a + b) = √121 = ±11. ----------(1)
Again:
(a - b)² = a² - 2ab + b²
=> (a - b)² = 73 - 48
=> (a - b)² = 25
=> (a - b)² = √25 = ±5. -------(2)
Hope this helps!
