Math, asked by magarpasang10, 4 months ago

find the square following (a+b)2or(a-b)2
@
a)49

Answers

Answered by madhusudana33

1

(40+9)

(a+b)²=a²+2ab+b²

(40+9)²=(40)²+2(40)(9)+(9)²

1600+720+81

2401

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