dasharia
01.07.2019 •
Mathematics
Afarmer has a rectangular pen for her goats. the length of the pen can be represented by the expression 2x - 1. the width of the pen can be represented by the expression x + 4. which of the following expressions represents the area of the farmer's rectangular pen?
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Ответ:
area = 2x² + 7x - 4
the area (A ) of a rectangle = length × width
A = (2x - 1 )(x + 4 ) ← expand using FOIL
= 2x² + 8x - x - 4 = 2x² + 7x - 4
Ответ:
tbbtbrtb
Step-by-step explanation:
bbrtbrtbrtb