Step-by-step explanation:
The English question states:
Rectangular flower garden with length (4x + 15) meters, width (6x + 3) meters. The actual diagonal length of the flower garden is?
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In this case, we have a rectangular flower garden with a diagonal length (4x + 15) meters and width (6x + 3) meters. By Pythagorean theorem we have that the diagonal (D) is:
