Question

Without finding the squares, find the difference of 66^{2} -65^{2}

Answer 1

Answer:

I didn't understand your question

Answer 2

Answer:

121

Step-by-step explanation:

= (60 + 6)^2 - (60+5)^2

= (360+36)^2 -(360+25)^2

= 396^2 - 385^2

= (396-385)^2

= 11^2

= 121