if the side of square is 5x²-4y
find its
area
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Answer:
5x^4-40x^2y+16y
Step-by-step explanation:
area=side^2
=(5x^2-4y)^2
=(5x^2)^2 - 2(5x^2)(4y)+(4y)^2
=5x^4-40x^2y+16y
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