Question

The perimeter of a rhombus is 4x2 – 16xy + 72. The side of the rhombus is​

Answer 1

Answer:

$8(x + 2xy + 9) = 0 \\ x + 2xy + 9 = 0 \\ x(1 + 2y) = - 9 \\ x = - 9 \div (1 + 2y)$

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