Question

Find two numbers whose sum is 15 and product is75

Answer 1

Answer:

Step-by-step explanation:

Let the first no be (a-d) and the second no be (a+d)

According to question,

a-d+a+d=15

2 a =15

a=15÷2

a-d×a+d=75

Put a=15÷2

a2-d2=75

(15÷2)2 - d2=75

30÷4-d2=75

-d2=75-30÷4

-d2=370-30÷4

-d2=340÷4

-d2=85