Question

(x+3y)^2
Please answer with explanation ​

Answer 1

Step-by-step explanation:

Given that:-

(x+3y)²

This is in the form of (a+b)²

Here, a=x and b=3y

we know that (a+b)²=a²+2ab+b²

(x+3y)²

=>x²+2(x)(3y)+(3y)²

=>x²+6xy+9y²

(x+3y)²=x²+6xy+9y²

Answer 2

Answer:

${(x + 3y)}^{2} \\ \\ = > x(x + 3y) + 3y(x + 3y) \\ \\ = > {x}^{2} + 3xy + 3xy + {9y}^{2} \\ \\ { \red{ \boxed{ \tt{ = > {x}^{2} + 6xy + {9y}^{2} }}}}$

plz follow me✌☺