Question

Expand using suitable identity:(2a + 5)^2 *​

Answer 1

Answer:

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

(2a + 5)^2 = (2a)^2 + (5)^2 + 2(2a)(5)

=4a^2 + 25 + 20a

= 4a^2 + 20a + 25

Ans: (2a + 5)^2 = 4a^2 + 20a + 25

Answer 2

Answer:

αηѕωєя

(2a+5)^2

{[a+b]^2=a^2+b+^2+2ab;}

==> (2a)^2 + 5^2 +2*2a*5;

==>4a^2+25+20a

•°• Expanded form of (2a+5)^2 is 4a^2+20a+25.

HOPE IT HELPS YOU!!!!!✨