Question

(2y+5)(2y+5) by Identity ​

Answer 1

Answer:

2y × 2y +5 × 2y + 5 × 5

= 4y² + 10y + 25

= 2y² + 10y + 5²

= ( 2y + 5 )²

identity is (a+b)²

Answer 2

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(2y+5)(2y+5) by Identity

$\green\bigstar\:\bf{\red{\overbrace{\underbrace{\purple{ANSWER}}}}}$

${(2y + 5)}^{2} \\ {(2y)}^{2} + 2(2y)(5) + {(5)}^{2}$

${4y}^{2} + 20y + 25$