Question

using a² -b² = (a+b) (a-b) find 61²- 59²​

Answer 1

Answer:

240

Step-by-step explanation:

61^2-59^2=(61+59)(61-59)

=120×2=240

Answer 2

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Using identity a² -b² = (a+b) (a-b),

we get , 61²-59² = (61+59)(61-59)

61²-59² = ( 120 ) ( 2 )

61²-59² = 240