Question

вычислите: 138^2-38^2 / 122^2-78^2

Answer 1

I hope this helps you

Answer 2

138^2 - 38^2 = (138×138) - (38×38) = 19044 - 1444 = 17600
122^2 - 78^2 = (122×122) - (78×78) = 14884 - 6084 = 8800