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Brilliant_brown [7]
3 years ago
13

Simplify (2x + y)(x - 2y) - (x + 2y)(2x - y) as much as possible.

Mathematics
1 answer:
snow_tiger [21]3 years ago
4 0

Answer:

-6xy

Step-by-step explanation:

(2x-y)x(x-2y)-(x+2y)X(2x-y)

remove the parentheses

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

collect terms

2x^2-4xy+xy-2y^2-(2x^2+3xy-2y^2)

remove the parentheses

2x^2-4xy+xy-2y^2-2x^2-3xy+2y^2

remove the opposites, collect the terms to get -6xy

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