Question

Q18. Find the value of a and b such that sum of a and b is 20 and their product is
100. Also find their differences ​

Answer 1

sum = a+b = 20

product = ab = 100

a = 20 - b

so, 20b - b² = 100

b² - 20b + 100 = 0

(b-10) (b-10) = 0

so, b = 10

a = 10

their difference = 10-10

= 0