Question

$(2y + 3) ^{2}$
explain explain using suitable identities​

Answer 1

Step-by-step explanation:

(2y+3)²

(a+b)² =a²+b²+2ab

(2y+3)²= (2y)²+ (3)²+2×2y×3

ans = 4y²+9+ 12y

correct answer is 4y²+9+ 12y

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Answer 2

Answer:

(2y +3)²

[ we know, (a +b)² = a² +2ab +b² ]

so, (2y +3)² = (2y)² +2(2y)(3) +(3)²

=> 4y² +12y +9

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