Question

4x²⁺25y²⁺20xy-10x-25y​

Answer 1

Answer:

(2x+5y)(2x+5y-5)

Step-by-step explanation:

(2x)^2+(5y)^2+2*2x*5y-10x-25y

(2x+5y)^2-10x-25y        [since, (a+b)^2=a^2+b^2+2ab]

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

(2x+5y)[(2x+5y)-5]

(2x+5y)(2x+5y-5)