Question

One number is 4 more than another. The difference between their squares is 128. What are the numbers?
Smaller number=___
Larger number=___

Answer 1

Answer:

14 and 18

Step-by-step explanation:

Small number : a

Larger number : a + 4

( a + 4 )^2 - a^2 = 128

a^2 + 8 a + 16    = 128

             8 a        = 128 - 16

                a         = 112 / 8

                a          = 14

And a + 4 = 18