Question

(3a+5b)^2 expand plis tell​

Answer 1

Answer:

Expansion by terms.

${9a}^{2} + 30ab + {25b}^{2}$

This is the expansion I think so. Hope it helps

Answer 2

Answer:

As (a+b)²= a²+b²+2ab

therefore (3a+5b)²=

=> (3a)²+(5a)²+2×3a×5b

=> 9a²+25b²+30ab