Answer:
Explanation:
n² -4n+ 4
Sum = -4
Product = 4
Factors : -2 , -2
n² - 4n +4 = n² - 2n - 2n + (-2)*(-2)
= n(n - 2) - 2(n - 2)
= (n - 2) (n - 2) = (n - 2)²
n² - 7n + 10
Sum = -7
Product = 10
Factors: -5 , -2
n² - 7n + 10 = n² - 5n - 2n + (-5)*(-2)
= n(n-5) - 2(n -5)
= (n - 5)(n-2)
n² - 4n +4 = (n-2)²
n² - 7n + 10 = (n - 5)( n-2)
Least common denominator = (n -2)² (n-5)