Question

expand the formula quick (2a+3)²​

Answer 1

Answer :

To expand :

• (2a + 3)²

Solution :

　 Identity : (a + b)² = a² + 2ab + b²

➠ (2a + 3)² = (2a)² + 2(2a)(3) + (3)²

　　 　 　 = 4a² + 2(6a) + 9

　 　　 　 = 4a² + 12a + 9

∴ Required answer :

• (2a + 3)² = 4a² + 12a + 9

Answer 2

Answer:

✯ Expand ( 2a + 3)² ✯

Applying identify ( a+ b)² = a ²+ b² + 2ab

We get ,

= (2a)² +( 3)² + 2 × 2a × 3

= 4a² + 9 + 12a

= 4a² +12a +9

Required expanded form = 4a² +12a +9

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