3 years ago

A theater has (2x+1) rows of seats, with (x-3) seats in each row. how many seats are in the theater?

Mathematics

2 answers:

vodomira [7]3 years ago

6 0

(2x+1)(x-3)

y(x-3) .... let y = 2x+1

y*x+y(-3) .... distribute

xy - 3y

x( y ) - 3( y )

x( 2x+1 ) - 3( 2x+1) ... replace y with 2x+1

2x^2 + x - 6x - 3 ..... distribute

2x^2 - 5x - 3

Answer is choice A

beks73 [17]3 years ago

4 0

The answer would be B hope it’s right

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Simplyfy 3^0+4x2-5Captionless Image

larisa [96]

Answer: 4x² -4

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First, evaluate the exponent you'll get, $3^{0}$ + 4x² -5 then evaluate to get, 1+ 4x² -5. Next, subtract the numbers, 1 + 4x² -5 then to get, -4 +4x². Lastly, rearrange the terms, -4 +4x² turns into, 4x² -4!

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