№ 115
а) 32 + 52 = 9 + 25 = 34(3 + 5)2 = 82 = 64;32 + 52 < (3 + 5)2; б) 102 – 62 = 100 – 36 = 64(10 – 6)2 = 42 = 16102 – 62 > (10 – 6)2.
вправи поруч