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Tcecarenko [31]
2 years ago
8

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

ct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Place the indicated product in the proper location on the grid.
(x + 2y ) 2
Mathematics
1 answer:
Blababa [14]2 years ago
8 0

The expansion of the expression (x + 2y)² is x² + 4xy + 4y².

<h3>How to illustrate the information?</h3>

The given expression is (x + 2y)². The expansion of the expression will be:

(x + 2y)²

= (x + 2y)(x + 2y)

= x² + 2xy + 2xy + 4y².

= x² + 4xy + 4y²

The expansion is x² + 4xy + 4y².

Learn more about functions on:

brainly.com/question/723406

#SPJ1

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Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

   = 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

    = 4x - 2 + 6x + 14 ← collect like terms

     = 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

   = (2x - 1)(3x + 7) ← expand using FOIL

    = 6x² + 14x - 3x - 7 ← collect like terms

    = 6x² + 11x - 7

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Answer: The total cost of a metal strip is $132.
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