Question

One number is 3 more than another. The difference between their squares is 51 . What are the numbers?

Answer 1

x=7

Explanation:

let the no. be x

so,

x, x+3 are the two no.s

given: difference between square is 51

so,

(x+3)²-x²=51

(By expanding)

x²+9+6x-x² =51

6x+9 =51

6x=42

x=7

hope this helps!