Question

using identity simplify (3x+5)²​

Answer 1

Step-by-step explanation:

(3x+5)^ = (a+b)^= a^+b^+2ab

3x^+ 5^ +3x*5*2

9x^ + 25 + 30x

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Answer 2

question :-

using identity simplify (3x+5)²

Using identity :-

$\boxed{\mathsf{(x \: + \: y)^{2} \: = \: (x)^{2} \: + \: 2 \: x \: y \: + {y}^{2} }}$

Solution :-

$\mathsf{: \longrightarrow \: (3x \: + \: 5)^{2} \: = \: (3x)^{2} \: + \: 2 \: \times \: 3x \: \times \: 5\: + {5}^{2} }$

$\mathsf{: \longrightarrow \: (3x \: + \: 5)^{2} \: = \: 9x^{2} \: + \: 30x\: + \: 25}$

Final Answer :-

$\boxed{\mathsf{(3x \: + \: 5)^{2} \: = \: 9x^{2} \: + \: 30x\: + \: 25}}$