Question

15. {(33)2 – (31)2}57​

Answer 1

$\huge \star \underline \pink{answer}$

33×2-31×2

66-62

= 4

Answer 2

Step-by-step explanation:

a2-b2=(a+b)(a-b)

{(33-31)(33+31)}57

{(2)(64)}57

7296