Find 37 square using identity (a + b)square = a square + 2 a b + b square
Answers
Answered by
6
Step-by-step explanation:
(30+7)^2
900+420+49
1369
Answered by
3
37 = 30+7
30 = a
7 = b
(a+b)sq. = (a)sq.+2ab+(b)sq.
(30+7)sq. = (30)sq.+(2*30*7)+(7)sq.
(37)sq. = 900+(60*7)+49
(37)sq. = 900+420+49
(37)sq. = 1320+49
(37)sq. = 1369
Answer = 1369
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