Answer: 76 Step-by-step explanation: (a-b)2 = a2 + b 2 -2ab 36 = a2+ b2 – 2*20 a2 + b2 = 36 + 40 = 76 Reply
Answer:
76
Step-by-step explanation:
(a-b)2 = a2 + b 2 -2ab
36 = a2+ b2 – 2*20
a2 + b2 = 36 + 40
= 76