Question

find square .82 using
(a+b)2=a²+b2+2ab
the
property​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

80+2 = 82

a=80 ; b=2

(80+2)² = (80)²+2×80×2+(2)²

= 6400+320+4

= 6724