Question

Evaluate (18)^2-(15)^2.
Please show working

Answer 1

18^2-15^2
=324-225
99

Answer 2

• Answer:

99

• Step-by-step explanation:

Hi there !

use formula a² - b² = (a-b)(a+b)

18² - 15² =

= (18 - 15)(18 + 15)

= 3×33

= 99

Good luck !