Question

Write the following in expanded form

(2x+5y+1)²​

Answer 1

Answer:

Here is your answer mate....

(2x)^2 + (5y)^2 + (1)^2 + 2(2x)(5y) + 2(5y)(1) + 2(2x)(1)

= 4x^2 + 25y^2 + 1 + 20xy + 10y + 4x

Hope this helps you....