Question

find (3x+5)² using identities​

Answer 1

Answer:

Here's your answer :-

There is a identity :-

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

Solving (3x+5 )^2 by the above mentioned identity :-

(3x+5 )^2 = 3x^2 + 2 × 3x × 5 + 5^2

= 9x^2 + 30x + 25

Hope it helps!!