Question

7(x - 2y)² + 3(x - 2y)²
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Answer 1

Step-by-step explanation:

7 (x²+4y²-4xy) + 3(x²+4y²-4xy)

7x²+28y²-28xy+3x²+12y²-12xy

7x²+3x²+28y²+12y²-28xy-12xy

10x²+40y²-40xy

10(x²+4y²-4xy)

hope it helps