Question

expand (2x+5y)square=? ​

Answer 1

Answer:

Step-by-step explanation:

We know,

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

so,

(2x+5y)^2 = (2x)^2 + 2(2x)(5y) + (5y)^2

i.e. = 4x^2 + 20xy + 25y^2

Answer 2

Answer:

4x2+20xy+25y2

Step-by-step explanation: (2x+5y)2 = 4x2+20xy+25y2