Question

1. Using identity solve: (3x+5)²​

Answer 1

(3x+5)² = 9x²+30x+25.

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Answer 2

(3x + 5)^2

( Using the identity (a+b)^2= a^2+b^2+2ab )

= 9x^2 + 25 + 2*3x*5

= 9x^2 + 25 + 30x

Hope this will help you.