devamdgajjar devamdgajjar

02-04-2020
Mathematics

contestada

Without the use of a calculator, calculate 77^2−23^2.

Respuesta :

1503689 1503689

02-04-2020

Answer:

5400

Step-by-step explanation:

Answer Link

lga22bbashardost lga22bbashardost

02-04-2020

Answer:

5400

Step-by-step explanation:

77x77=5929

23x23=529

5929-529

5400

Answer Link

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