26-04-2021
Mathematics

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Which of the following leading terms would make the expression a perfect square trinomial?
____ −140xy+100y2

A) 49x^2
B) 25x^2
C) 81x^2
D) 64x^2

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dilbert21 dilbert21

26-04-2021

A) 49x^2

Because:
(7x-10y)^2 = 49x^2 - 140xy + 100y^2

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