Question

From the product of (x-2y +1)(x-2y) subtract (x+y+1) (x-2y)

Answer 1

Answer:

6y^2-3xy

Step-by-step explanation:

according to the question,

(x-2y+1)(x-2y)-{(x+y+1)(x-2y)}

x^2-2xy-2xy+4y^2+x-2y-

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

x^2-4xy+4y^2+x-2y-x^2+xy+2y^2-x+2y

6y^2-3xy

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